D.J. Carrasco only pitched three and two-thirds innings for the Mets this season, but after he surrendered a two-run homer to Cincinnati’s Todd Frazier last night, the front office decided that enough was enough. Carrasco was designated for assingment after last night’s loss, and this morning the Mets announced they had called up lefty reliever Robert Carson from double-A Binghamton.

Last season, Carson pitched mostly as a starter for the B-Mets, but he didn’t find a ton of success in that role. The 2007 14th round draft pick only struck out 91 batters in 128.1 innings with 55 walks and a 5.05 ERA. However, while pitching out of the pen this season, Carson has 13 strikeouts and 4 walks in 14.2 innings with a 1.84 ERA.

Carson hasn’t pitched in the majors before, so the Mets will likely bring him along slowly with some low leverage work. Eventually though, Carson can give the bullpen more flexibility by giving Terry Collins a second lefty to turn to. So far this season, Collins has had to decide between using Byrdak on a tough lefty in the sixth or seventh inning and saving him for later on. Hopefully, if Carson pans out, he can allow the Mets to be tougher on lefties late in the game.