Serbia’s Nenad Zimonjic and Germany’s Julia Goerges failed to reach second round of the mixed doubles competition in New York after losing to the American pairing of Christina McHale and Stefan Kozlov by 7-5, 6-2 and 12-10 after 93 minutes on Thursday.

Seventh seeds Zimonjic and Goerges failed to use two match points and then lost momentum and allowed their opponents to come back and win the match.