Jackie Robinson was a college football star who became a big league baseball star.
Good point.
Tebow gives everything he’s got. I think he’s got a shot at making the majors.
He was also a college baseball star, as well as playing basketball and excelling in track and field. Following his time in the military he began his career in professional baseball and stayed there. Robinson didn't fail in one professional sport and only to then try another.
Also Kirk Gibson, as well as a few others.