https://sports.yahoo.com/yankees-pitcher-fritz-peterson-infamous-for-trading-wives-with-a-teammate-dies-at-82-161401164.html

However, Peterson is perhaps best known for more infamous reasons. During spring training of 1973, he and teammate Mike Kekich revealed that they had traded families and homes. Kekich's wife and two daughters moved in with Peterson, while Peterson's wife and two sons lived with Kekich.

"It wasn't a wife swap. It was a life swap," Kekich said in an interview, via The New York Times. "We're not saying we're right and everyone else who thinks we're wrong are wrong. It's just the way we felt."