Mets add 2nd lefty reliever, promote Hampson, DFA Rottino

Vinny Rottino has been designated for assignment to make room on the 25-man roster for LHP Justin Hampson, who was promoted from Triple-A to be a second left-handed reliever.

This season in Triple-A, Hampson, 32, was 4-2 with a 2.13 ERA in 28 appearances, during which left-handed hitters are batting .213 against him.

He pitched for the Rockeis and Padres from 2006 to 2008, going 5-4 with a 3.38 ERA in 79 appearances.

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Matthew Cerrone: This will be viewed as a knee-jerk reaction to last night, when Terry Collins did not use Tim Byrdak to pitch to Robinson Cano, who hit a go-ahead home against Miguel Batista, who Collins left in the game for a second inning. But, the Mets have needed a second left-handed reliever pretty much since Opening Day. They tried Robert Carson and they've talked about Josh Edgin, but both have struggled lately in Triple-A. I know very little about Hampson, but if he can help give Terry options, I'll take it.

The other aspect to this is that by cutting Rottino, the Mets have just one right-handed bat on the bench, which will make things more interesting than they already are on days when Hairston starts for Lucas Duda or Kirk Nieuwenhuis.