The Nationals traded Clippard to the Oakland Athletics for Yunel Escobar on January 14, 2015.
Clippard and the Athletics agreed on an $8.3 million salary for the 2015 season.
With Athletics' closer Sean Doolittle beginning the season on the disabled list, Clippard served as the team's closer.
Clippard saved 17 games for the Athletics, pitching to a 2.79 ERA in ​38 ²⁄₃ innings.

On July 27, 2015, the Athletics traded Clippard to the New York Mets for pitching prospect Casey Meisner.
Clippard returned to a setup role, with Jeurys Familia remaining the Mets' closer.
In ​32 ¹⁄₃ innings with the Mets, Clippard pitched to a 3.06 ERA.
In the 2015 MLB postseason, Clippard allowed five earned runs in ​6 ²⁄₃ innings.
The Nationals traded Clippard to the Oakland Athletics for Yunel Escobar on January 14, 2015. Clippard and the Athletics agreed on an $8.3 million salary for the 2015 season. With Athletics' closer Sean Doolittle beginning the season on the disabled list, Clippard served as the team's closer. Clippard saved 17 games for the Athletics, pitching to a 2.79 ERA in ​38 ²⁄₃ innings.
On July 27, 2015, the Athletics traded Clippard to the New York Mets for pitching prospect Casey Meisner. Clippard returned to a setup role, with Jeurys Familia remaining the Mets' closer. In ​32 ¹⁄₃ innings with the Mets, Clippard pitched to a 3.06 ERA. In the 2015 MLB postseason, Clippard allowed five earned runs in ​6 ²⁄₃ innings.
Tyler Clippard