claim: In 2015, SummerSlam was held.
evidence: Carlos Berlocq and Eduardo Schwank were the defending champions , but decided not to participate .. Carlos Berlocq. Carlos Berlocq. Eduardo Schwank. Eduardo Schwank. Jurgen Melzer and Philipp Petzschner defeated Marcel Granollers and Marc Lopez in the final , 6 -- 3 , 6 -- 4 .. Jurgen Melzer. Jurgen Melzer. Philipp Petzschner. Philipp Petzschner. Marcel Granollers. Marcel Granollers. Marc Lopez. Marc Lopez