TIL that in 1973, New York Yankees pitchers Fritz Peterson and Mike Kelich traded families.

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Throwback Thursday: Yankees' Wife Swap

https://www.espn.com/blog/sweetspot/post/_/id/55522/throwback-thursday-wife-swap

The strangest trade in baseball history occurred on March 4, 1973, when New York Yankees pitchers Mike Kekich and Fritz Peterson held separate news conferences during spring training.

Throwback Thursday: Yankees' Wife Swap