The Mets have traded for A's left-handed relief pitcher Eric O'Flaherty. In exchange, they'll send the Athletics a player to be named later. The team has also designated left-handed relief pitcher Alex Torres, who was acquired in a trade with the Padres just before the season started, for assignment.
In 21.1 innings for the A's this year, O'Flaherty struggled, with a 5.91 ERA and 4.12 FIP. Like Torres, he has a very high walk rate this year. And in 34.1 innings with the Mets, Torres had a 3.15 ERA and 5.68 FIP. Mets fans are surely rejoicing over the latter move.
In O'Flaherty, the Mets want a lefty specialist. For his career, O'Flaherty has been dominant against lefties, with a 2.77 FIP, 7.78 strikeouts per nine, and 2.35 walks per nine. Opposing left-handed hitters have hit just .199/.266/.263 against him. This year, lefties have hit just .182/.286/.209 against him, and he has a 2.44 FIP.