The Tigers of Detroit once traded away one of their catchers.
In return, they got the infamous "player to be named later."
Several weeks later, the catcher was sent back to the Tigers as the player to be named.
More amazingly, he is not the only example of a baseball player to be traded for himself.
Update: there seems to be some discrepancy on this one. Some believe that it was actually Cleveland that traded this player to the Mets, but looking at his official stats, it appears he never played for Cleveland, and the year of the trade (1972) he was playing for Detroit.
Huh.
