Bo Jackson was one of the most talented athletes of his era, but he might have also been one of its toughest.

In a recent interview with reporters at spring camp for the Kansas City Royals, Jackson admitted he had shoulder replacement surgery last year for an injury he sustained while playing baseball in 1990, according to The Associated Press.

On July 17, 1990, after hitting three straight home runs against the New York Yankees, Jackson dislocated his left shoulder diving for a line drive off the bat of Deion Sanders.

Jackson, who also famously put his own hip back into place while playing in a NFL game, admitted the injury finally began to bug him more than two decades after it initially occurred.

"That finally caught up with me," Jackson, who is in Royals camp as a guest coach, explained. "I kind of felt something bugging me about 2 1/2 years ago. Within 2 1/2 years, it went from just a little bug to I couldn't lift my arm to put on deodorant."

Jackson, a famous two-sport star also known for the "Bo Knows" campaign, retired from baseball after the strike-shortened 1994 campaign.