That's a tough one. Because there's lots of different sports.
But Bo Jackson and Deion Sanders played in two major professional sports leagues, they both played in both the MLB and the NFL.
"Since 1970, only seven athletes have done so, including Bo Jackson and Deion Sanders. Jackson was the first athlete to be selected as an All-Star in both MLB and the NFL. Sanders holds the longevity record, having appeared in 641 MLB games and 189 NFL games."
Sanders won two Super Bowl titles, one in 1995, while playing for the San Francisco 49ers, and another in 1996, playing for the Dallas Cowboys, and made one World Series appearance in 1992, when he played for the Atlanta Braves, who ultimately lost to the Toronto Blue Jays, but even so, this makes him the only individual to appear in both a Super Bowl and a World Series.