Dave Winfield?
Jackie Robinson. Winfield was a pretty good basketball player, but Robinson, if he had entered the league in the late forties/early fifties would have been among the best athletes in the league, maybe the best. In the off-season he played semi-pro ball for the LA Red Devils a team that would occasionally play exhibition games against NBA teams and beat them.
Robinson wanted to get his team into the NBA, but LA was too far from most of the other teams, and they, the other teams, didn't have the money for air travel.
At 5'11 Robinson was not only extra fast, he was a tremendous leaper who regularly dunked in games despite being under six feet. He was an excellent ballhandler.
He was a big star in college at UCLA in four sports. He could have been a pro football player as well.
But he chose baseball, and as they say, the rest is history.