The question is inspired by Deion Sanders, who played for the Niners when they won their last Super Bowl (I’ve been a Niners fan ever since) and was traded to the Cowboys the next season where he won another ring. If you’re ever feeling low, just remember that the Cowboys have never even made a conference final since then. Wonderful, just wonderful.
Anyway, I imagine there are several who are on two. Are there any on three? More?
Will Smith, the pitcher not the catcher, was a member of the 2021 Braves, 2022 Astros, and 2023 Rangers world championship teams. None of the three has won since.
It’s interesting that you can lose this record, not just by somebody else beating it, but by you losing your stats if a former team wins another championship.
No MLB player has won the Series with more than three different teams, so baseball is out. I don’t really follow the other sports, so I couldn’t hazard a guess about them.
*Lonnie Smith probably came the closest: Phillies in ‘80, Cardinals in ‘82, Royals in ‘85, and the ‘91 series (when he was playing with Atlanta) came out the wrong way for the Braves despite being a seven-game series with games 6 and 7 being extra inning losses.