Clippard has been the closer for the Athletics this year and has posted a 2.79 ERA while going 17-for-21 in save opportunities in 2015. This will add to what is starting to look like a suddenly formidable bullpen, with Clippard likely setting up for current Mets closer Jeurys Familia. The Mets needed to go out and get a relief pitcher because Jenrry Mejia is ineligible for the postseason due to his PED suspension, and also because the bridge from the starting rotation to Familia has been shaky of late.
Casey Meisner was the Mets' ninth-best prospect in Amazin' Avenue's midseason rankings. Meisner has split time this year between the Savannah Sand Gnats and the St. Lucie Mets. He has a 2.35 ERA in 111 innings across the two levels with 7.2 strikeouts per nine innings and just 2.2 walks per nine.
Meisner was drafted by the Mets in the third round of the 2013 MLB draft out of Cyprus Woods High School in Texas.