Jordan earned the rare honor of being named an All-Star in the NFL and MLB. His career as a safety with the Atlanta Falcons only lasted three seasons, as a $1.7 million signing bonus to play baseball exclusively from the St. Louis Cardinals was enough to draw him away from his pro football career.
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Conley is the only athlete to win a championship in two of the four major American sports, winning a World Series in 1957 with the Milwaukee Braves and three championships with the Boston Celtics from 1959-1961. Conley was also named to four MLB All-Star teams during his pitching career.
Brown was known as one of the best running backs of all time in the NFL, but often people don't know that he was also considered a great lacrosse player for Syracuse while playing basketball and football in school as well. Brown was the second leading scoring during his sophomore year on the Syracuse lacrosse team and was an All-American his senior year. Pair that with with his three NFL MVP and nine Pro Bowl appearances and Brown is one of the best dual-athletes of all time.
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Robinson is known as one of the greatest baseball players of all time after breaking the color barrier in the sport. However it is not well known that Robinson was an accomplished track and football star at UCLA, in fact his "worst" sport in college was baseball, hitting only .097 in his only season with the team.
Hayes was considered the world's fastest man holding several world records in track, before taking his speed to the NFL. He is credited with forcing teams in the NFL to develop zone defenses and bump and run coverages in an attempt to contain him. Hayes is the only man to have a won an Olympic gold medal and a Super Bowl, he is also a member of the Pro Football Hall of Fame and enshrined in the Dallas Cowboys Ring of Honor.
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Jackson, Heisman Trophy winner out of Auburn, was selected with the No. 1 overall pick in 1986 by the Tampa Bay Buccaneers, but never played for the team as he was unwilling to give up his baseball career with the Kansas City Royals. The following season, Jackson got his chance to play professional football with the Oakland Raiders, who allowed him to report to the team at the conclusion of the baseball season. According to his Nike ad campaign "Bo Knows," Jackson had a long line of other sports he could play as well.
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Louis is best known for his boxing career where he compiled a 65-3 overall record, and was the heavyweight champion form 1937-46. While his boxing career was impressive, his presence in his next sport was likely more impactful -- becoming the first African-American to play in a PGA Tour event, opening the door for many future golfers.
The only athlete to have played in the Super Bowl and World Series, Sanders played 14 seasons in the NFL, earning eight Pro Bowl appearances and a spot in the Pro Football Hall of Fame. Highlighting Sanders' nine seasons in baseball was a trip to the World Series with the Atlanta Braves. Sanders is the only person to hit a home run and score a touchdown in the same week.
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The running back out of Georgia won the Heisman Trophy in 1982 and went on to play in the USFL and NFL for 15 years. In 1992, while playing in the NFL, Walker competed in the two-man bobsled at the 1992 Winter Olympics in Albertville, France. More recently, he has taken on a third sport competing in MMA with Strikeforce and currently has a 2-0 fighting record.
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Thorpe won gold medals in the decathlon and pentathlon in the 1912 Olympic games. The following year, Thorpe began his baseball career as an outfielder for the New York Giants. Two years later, he joined the Canton Bulldogs of the American Professional Football Associated which would later become the NFL. Thorpe went on to play 13 seasons in the NFL and seven in MLB and is often considered one of the greatest multi-sport athletes of all time.