MONTPELLIER, France -- Fifth-seeded John Isner edged French qualifier Adrian Mannarino 7-6 (5), 6-7 (5), 6-3 in the second round of the Open Sud de France on Wednesday, serving 27 aces to move to 999 for the season.
The 6-foot-9 Isner converted his sole break-point opportunity and Mannarino wasted his six break chances on the indoor hard court. The match lasted 2 hours, 11 minutes.
Isner set a record by firing 113 aces during his historic first-round win over Nicolas Mahut at Wimbledon earlier this year, a marathon that clocked in at 11 hours, 5 minutes and needed 183 games to complete.
The 25-year-old American has already served 346 aces more than his previous best of 653 set last season.
Davydenko saved 10 break points and broke Zverev twice. Tsonga fended off five break points and served 11 aces.
Jarkko Nieminen of Finland rallied for his first victory in six matches against Frenchman Florent Serra, reaching the second round with a 6-7 (4), 7-5, 6-1 win. In the remaining first-round match, Gilles Simon beat Mahut 6-4, 6-4 in an all-French encounter.