Earlier this week the Red Sox traded Kelly Shoppach to the Mets for a player to be named later and today that player was revealed as reliever Pedro Beato.
Beato appeared in 60 games for the Mets last season and pitched decently as a 24-year-old rookie, but has spent most of this season at Triple-A with a 4.14 ERA and 27/11 K/BB ratio in 37 innings.
He was originally an Orioles first-round pick in 2006, going to the Mets as a Rule 5 pick in December of 2010.
So, basically the Red Sox and Mets swapped an impending free agent part-time catcher for a mediocre middle reliever under team control for a while.