© Paul Macpherson / ATP World Tour

Alexander Peya (left) and Philipp Petzschner topple the fifth seeds to reach the Miami Open second round.

Petzschner and Peya Spring Surprise In Miami

Daniel Nestor and Brian Baker also advanced following a Match Tie-break

Philipp Petzschner gave himself the perfect 33rd birthday present at the Miami Open presented by Itau, teaming up with Alexander Peya to oust BNP Paribas Open champions Raven Klaasen and Rajeev Ram 6-3, 7-5 on Friday.

As a reward for defeating the fifth seeds, Petzschner/Peya advance to the second round to face the winners of Dominic Thiem/Nenad Zimonjic and brothers Alexander Zverev/Mischa Zverev.

 Watch Full Match Replays

Daniel Nestor and Brian Baker edged past Oliver Marach and Mate Pavic 6-7(3), 7-6(4), 11-9. They will take on second seeds Pierre-Hugues Herbert and Nicolas Mahut or the pairing of Dominic Inglot and Florin Mergea in the second round.

Marin Cilic overcame disappointment in the singles to partner his countryman Nikola Mektic to a fighting 3-6, 6-3, 10-7 win over Argentinian duo Diego Schwartzman and Horacio Zeballos.