It was 20 years ago, on April 9, 1993, that Jackson returned to the White Sox after undergoing surgery to receive an artificial hip and belted a home run in his first appearance, as a pinch-hitter against the Yankees' Neal Heaton.
"The only way that it feels like it's been 20 years is that out of both teams, I bet I don't know but about five players and I played for both teams," he said.
Although Jackson tossed the pitch at the White Sox invitation, he was outwardly neutral, wearing a plain black cap with no team emblem.
Jackson played outfield for the Royals and running back for the Raiders as he combined careers before sustaining a hip injury in football in 1991. He's remembered for his "Bo Knows" Nike ad campaign and his extraordinary feats are still shown on stadium video boards.
He's a candidate for the Royals Hall of Fame currently being voted on by an election committee.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.