1. (Born 1961) Born in Brantford, Ontario, 'The Great One' was named Canada's athlete of the century. Gretzky holds or shares 61 NHL records, including career goals (894), assists (1,963), and points (2,857). The winner of ten scoring titles (Art Ross Trophies) and nine NHL MVP's (Hart Trophies), his #99 was retired league-wide. He won four Stanley Cups with Edmonton in the 1980s before a major trade sent him to Los Angeles in 1988. After a brief stint in St. Louis, he finished his career with the New York Rangers in 1999.

2. (1915 - 2000, England, winger) Known as 'Wizard of the Dribble,' the winger debuted for England as a 19-year-old, and closed his international career in 1956 at the age of 41, when he was named the first-ever European Footballer of the Year. Though he played for unfashionable northern first division clubs like Blackpool and Stoke City, he was the most popular player of his era. In the 1953 F.A. Cup final against Bolton at Wembley, thereafter always called 'The Matthews Final,' Matthews led a rousing comeback from a 3-1 deficit with 30 minutes remaining, setting up three goals. He is also one of the most gentlemanly players in history, having never been sent off with a red card during his entire career. In 1961, he became the first English footballer to be knighted. In 1963, at the age of 48, he helped Stoke City back into the F.A. First Division by scoring the goal that clinched promotion. He retired, quite reluctantly, from the game in 1965 at the age of 50.

3. (Born 1965) Born in Montreal, Quebec, 'Super Mario' scored his first NHL goal on the first shift of his first game, against Boston in 1984. He led the Pittsburgh Penguins to consecutive Stanley Cups in 1991-1992. After a bout with Hodgkin's disease, he returned to lead the NHL in scoring in 1995-1996 and 1996-1997. He then later helped bail the Penguins out of bankruptcy by becoming the lead owner of the team in 1999.

4. (1929 - 2016) A native of Latrobe, Pennsylvania, Palmer made golf popular with the masses, as his fans were known as 'Arnie's Army.' He won seven majors, including four Masters, and was the first golfer to earn one million dollars on the PGA Tour. Later Palmer became one of the stars of the Senior Tour, winning the Senior PGA Open in 1980 and 1981. In 2002 he played in his last competitive Masters.

5. (Born 1959) Though perhaps best known for his fiery temper and abuse of referees (with taunts like 'You can't be serious!'), McEnroe was the dominant player of the early 1980s. As a 17-year old amateur qualifier, he made the semifinals of Wimbledon, and in 1979 he won the first of three straight U.S. Opens. He almost ended Borg's run of Wimbledons in a five-set thriller in 1980, but succeeded the following year. In 1984, McEnroe compiled an 82-3 record, winning Wimbledon and his fourth U.S. Open, for a total of seven majors. An outstanding doubles player as well, he won 77 titles, many with partner Peter Fleming. He also played in the Davis Cup 12 times, captaining the U.S. team in 2000.

6. (Born 1956) On both grass and clay in the late 1970s, resistance to Borg was futile; he won Wimbledon five straight years (1976-80) and the French Open six times, for a total of 11 majors. Borg got started at age nine, after his father won a tennis racket in a ping-pong tournament and gave it to him. He took his first French in 1974 and dominated through 1981, when John McEnroe finally knocked him off at Wimbledon. Borg then inexplicably retired at 26; he tried an unsuccessful comeback in the early 1990s. Despite his great success, Borg never won the U.S. Open (reaching the final four times). He played at the Australian Open only once, usually preferring to take the winter months off.

7. (Born 1939) Born in Point Anne, Ontario; 'The Golden Jet' was the star of the Chicago Blackhawks of the 1960s. He won three Art Ross Trophies and led the NHL in goals seven times. In June 1972, he defected to the fledgling WHA's Winnipeg Jets for a record ten-year, $2.75 million deal, where he helped make Winnipeg one of the four WHA teams to merge with the NHL in 1978-1979. He is also the father of Brett Hull; the duo is the only father-son combination to score 500 each in NHL history.

8. (1912 - 2002) No golfer has won more PGA Tournaments than Snead's 81, and he amassed 135 victories worldwide. Nicknamed 'Slammin' Sammy,' he won seven major professional championships between 1942 and 1954, but he is known more for the one he never won: the U.S. Open. In 1939 Snead led the Open for 71 holes but lost on the last hole when he took an eight. In the 1960s and '70s he won a record six Senior PGA Championships.

9. The first edition of the modern Olympics was the brainchild of Baron Pierre de Coubertin of France; winners were awarded silver medals. Some of the stranger events included one-handed weightlifting and 100-meter freestyle swimming for members of the Greek navy. Appropriately, Greek shepherd Spiridon Louis became the hero of the Games by winning the marathon.

10. (Born 1961, first base) The best first baseman in baseball for most of the 1980's. He holds the major league record for most grand slams in a season (6 in 1987, tied by Travis Hafner in 2006). He twice led the league in hits (1984 and 1985), won the league batting title by edging out teammate Dave Winfield on the final day of the 1984 season, and drove in the most runs in 1985 to win the MVP award. 'Donnie Baseball' also won nine Gold Gloves, but World Series glory eluded 'the Hitman.' His Yankees never played in the Fall Classic. He managed the Dodgers from 2011 to 2015, and as of 2016 is the manager of the Marlins.

11. (Born 1949) He became the major rival to Jack Nicklaus in the second half of the Golden Bear's career. Watson's greatest achievements were at the British Open, a tournament he won five times between 1975 and 1983. He took eight major championships overall.

12. (Born 1948) Born in Parry Sound, Ontario, Bobby Orr revolutionized the position of defenseman. The first blue liner to win the Art Ross Trophy (scoring title), he also won the Norris (best defenseman), Hart (league MVP), and Conn Smythe (playoff MVP) in the same season (1969-1970). That same year, he led the Bruins to their first Stanley Cup in three decades with the now famous 'Goal.' He recorded the highest ± rating ever for a single season, +124 in 1970-1971, and won eight straight Norris Trophies from 1968-1975. Unfortunately, his bad knees forced him into early retirement in 1979.

13. (1925 - 2015, catcher) Notorious for swinging at bad pitches, but his bat collided with them often enough to hit a catcher's record 306 homeruns that lasted for more than 30 years (since passed by Johnny Bench, Carlton Fisk, and Mike Piazza). His hitting, fielding, and ability to lead the Yankee pitching staff earned him three MVP awards (1951, 1954, 1955). He also starred in the World Series, collecting 71 hits while playing on 10 championship teams, both records. Hired as Yankee manager in 1964, he led the Yanks to the pennant but was fired following their Series loss to the Cardinals. His 1973 pennant with the Mets made him the only manager besides Joe McCarthy to take home the flag in both leagues. Like Casey Stengel, he was famous for his quotes, including 'It ain't' over 'til it's over,' 'It's deja vu all over again,' and 'Little League baseball is a very good thing because it keeps the parents off the streets.'

14. (1931 - 1995, center field) He was born to play baseball — his father named him for Hall of Fame catcher Mickey Cochrane — but his left leg wasn't. In high school it was nearly amputated because of osteomyelitis, the first of his many leg problems. Known as the 'Commerce Comet' because of his speed and because he grew up in Commerce, Oklahoma, he became the Yankee center fielder following DiMaggio's retirement in 1951. Mantle played on twelve pennant winners and seven World Championship clubs. He holds World Series records for home runs (18), RBI (40), runs (42), walks (43), extra-base hits (26), and total bases (123). During the regular season, his switch-hitting powered 536 homeruns and won him four homer titles (1955, 1956, 1958, 1960), three MVP awards (1956, 1957, 1962), and a triple crown (1956). In 1961 he and teammate Roger Maris both had a chance of passing Ruth's 1927 mark (60), but injuries forced him out of the race (Maris hit 61). He was elected to the Hall of Fame alongside Whitey Ford in 1974.

15. (1895 - 1948, pitcher and outfield) The rough son of a saloon keeper, he grew up on the Baltimore waterfront and in the St. Mary's Industrial School for Boys. Released after signing a baseball contract with the minor-league Baltimore Orioles, he was bought by the Boston Red Sox and played with them for six seasons, winning 89 games and three World Series, and, in 1919, setting a new single-season home-run record: 29. Already famous as a player, eater, and carouser, Boston sold him to New York for the 1920 season, where his fame became legend. Moved from the pitcher's mound to the outfield, he won nine home-run titles and four World Series from 1920 to 1934. In 1927 he hit 60 home runs and led the 'Murderers' Row' Yankee lineup to a sweep of the Pittsburgh Pirates in the World Series. He hit his controversial 'Called Shot' homer against the Cubs during the third game of the 1932 World Series after allegedly gesturing towards the centerfield stands. Since his retirement from baseball in 1935, many of his most famous pitching and batting records have been surpassed, but power hitting as a legitimate approach towards playing baseball continues. Before Ruth, the homer was a rare occurrence.

16. (1943 - 1993) Ashe once claimed that he would consider himself a failure if he were remembered only for tennis. The first black man to win either the U.S. Championship (1968) or Wimbledon (1975), he was also the first American tennis player to earn over $100,000 in one year (1970). The author of Hard Road to Glory, a history of black athletes, Ashe announced in 1992 that tainted blood from a 1983 heart surgery had given him the AIDS virus. Arthur Ashe Stadium, the current home of the U.S. Open, was named for him in 1997.

17. (Born 1925, pitcher) Called 'The Chairman of the Board' because of the cool, corporate-like efficiency of his pitching style. His 236 wins against 106 defeats yields a .690 winning percentage, third best, and first for a pitcher with 200 or more victories. In the 1960, 1961, and 1962 World Series, he pitched 33 consecutive scoreless innings, breaking Babe Ruth's World Series record of 29 ⅔ innings of shutout ball. His other World Series records include wins (10), losses (8), innings pitched (146), hits (132), bases on balls (34), and strikeouts (94). Under Casey Stengel he was commonly rested against poor teams so that he could be used against contenders (or in relief), making his 2.75 career ERA even more impressive. He won the Cy Young award in 1961.

18. (1892 - 1969) Nicknamed 'The Haig,' he was the first great pro golfer, appearing in over 2,500 exhibitions. A five-time PGA Champion, including four straight from 1924 to 1927, Hagen won eleven majors overall, and he was known most for his showmanship and his ability to recover from poor shots with spectacular ones. Hagen captained the U.S. Ryder Cup team six of the first seven times the event was held.

19. (Born 1942) The most prolific winner, male or female, she amassed 62 Grand Slam titles, 24 of them in singles (3 Wimbledon, 5 French, 5 U.S., and 11 in her native Australia). Billie Jean King called Court 'The Arm' because of her long reach, aided by her height of nearly six feet. In 1970 she became the second woman (after Maureen Connolly) to win the Grand Slam, taking 21 singles championships overall that year; less impressive was her 1973 loss to 55-year old Bobby Riggs. Court did defeat King, Riggs's nemesis, 22 of 32 times. She retired in 1977 and became a lay minister.

20. Virtually every Communist nation skipped these games, leaving the door open for a 'USA all the way' feeling, as the Americans took home 83 gold medals out of a total of 174. Among the highlights were American sprinter Carl Lewis' repeat of Jesse Owens' 1936 performance: winning the 100-meter dash, 200-meter dash, long jump, and 4×100 meter sprint relay. In gymnastics, West Virginia native Mary Lou Retton won the all-around gold medal.

21. (Born 1972, France, midfielder) Known the world over as 'Zizou,' the 1998 World and European Footballer of the Year as an all-around player is France's midfield. Zidane was a critical player in the World Cup '98 (he scored a pair of header goals in the final against Brazil) and Euro 2000 (a game-winning overtime penalty kick in the semi-finals against Portugal), both triumphs for the French national side. Like fellow French legend Platini, Zizou played for the Italian team Juventus, where he has helped it win two Series A titles.

22. (1912 - 2006) He won five major championships overall, but Nelson is best known for having the single most dominant year in golf history. In 1945 he won a record 18 tournaments in 30 starts, including 11 consecutive tournaments, a feat no one has come close to matching. Nelson was so even-tempered and mechanically sound that the USGA named its mechanical club and ball-testing device, the 'Iron Byron,' after him.

23. (1903 - 1941, first base) Born in Manhattan to German immigrants. A football and baseball player at Columbia University, he signed with the Yankees in 1923. He became a regular in 1925, replacing Wally Pipp at first base and beginning his streak of 2130 consecutive games played (since broken by Cal Ripken Jr. in 1995) that earned him the nickname 'The Iron Horse.' His batting feats include 184 RBI in 1931 (the AL record), 23 career grand slams (the ML record for many decades, since broken by Alex Rodriguez), a triple crown in 1934, and a .340 career batting average. When it was discovered that he was suffering from amyotrophic lateral sclerosis—now commonly known as Lou Gehrig's disease—he delivered his famous 'Today, I consider myself the luckiest man on the face of the Earth' speech at Yankee Stadium on July 4, 1939. In deference to Lou, no Yankee was appointed captain until Thurman Munson in 1976.

24. (Born 1970) His father boxed for Iran in the 1948 and 1952 Olympics; his own Olympic exploits included the 1996 tennis gold. Born in Las Vegas, he reached the world's #3 ranking at age 18 but was better known for his image than for his play. Perhaps the greatest returner and baseline player ever, Agassi won his first major on Wimbledon grass in 1992. Briefly married to Brooke Shields, he fell to #141 in the world in 1997, but after they divorced, Agassi rededicated himself to the game. In 1999 he won the French Open, becoming just the fifth man to complete the career Grand Slam. In all, Agassi has won eight major singles titles (five since 1999), and is now married to women's great Steffi Graf.

25. (Born 1947) Born in Hamilton, Ontario, he had a standout career at Cornell University before joining the Montreal Canadiens organization in 1970. In 1970-1971, he starred in the playoffs, winning Conn Smythe Trophy honors (playoff MVP), before going on to win Calder Trophy (Rookie of the Year) honors the next season. Along with Tony Esposito, he served as Canada's goalie during the legendary 1972 Summit Series with the USSR. He sat out the entire 1973-1974 season in a contract dispute, and worked as a legal clerk, obtaining his law degree from McGill. He currently serves as the President of the Toronto Maple Leafs.