The Mets have had some issues with left-handed relievers this season but don't appear to be close to adding one before August 31st, according to Anthony DiComo of MLB.com.
Of course a last-minute deal could materialize, but source says the #Mets are "unlikely" to trade for another reliever before Aug. 31.— Anthony DiComo (@AnthonyDiComo) August 27, 2015
When Josh Edgin went down for the season to Tommy-John surgery, Mets fans began to feel like it was going to be another long season.
Sandy Alderson reacted by trading for Jerry Blevins and Alex Torres on March 30 in the hopes that one of them could be the primary lefty out of the bullpen.
Blevins started the year with seven straight scoreless appearances, but broke his forearm toward the end of April. Torres struggled against lefties, giving up a .267/.406/.393 batting line to them, before being designated for assignment in early August to make way for Eric O'Flaherty. But O'Flaherty has given up 10 runs in 5.2 innings since becoming a Met.
The lone success has been Rule 5 Draft pick Sean Gilmartin, but he has been used more in long-relief than in a LOOGY type role.
New York does have some options however in the minors. Dario Alvarez has posted a 2.68 ERA between Double and Triple A this season, averaging 13.4 strikeouts per nine innings against 4.2 walks per nine.
They also have Josh Smoker, a former first round pick who has found himself at Double-A this season, with a 2.76 ERA, 11.2 K/9 and a 2.8 BB/9 over 45.2 innings. Alvarez appears to be a more likely candidate to make the roster when they expand in a couple of days.
The Mets have made a ton of moves, but a combination of bad luck and ineffectiveness has kept any of them from working out over the long term. But the Mets are winning and are a serious World Series contender, especially if they can solve their bullpen woes before the playoff rosters need to be set.