Top-seeded John Isner overpowered Dudi Sela on Sunday to successfully defend his Atlanta Open title, blowing serve after serve past the 5-foot-9 Israeli player in a 6-3, 6-4 victory.

Serving for the match, the 6-foot-10 Isner fell behind 30-0 before Sela sent a backhand into the net, and then watched almost helplessly as the American ripped three straight aces for the win. Isner finished with 15 aces to Sela's two.

Ranked 12th, Isner has won two of his nine career titles in Atlanta, where he also lost to Mardy Fish in the 2010 and 2011 finals and to eventual champion Andy Roddick in the 2012 semifinals. In running his Atlanta record to 16-3, the former University of Georgia star had the crowd on his side on a 92-degree afternoon under bright sun.

"I was able to get up early, and I was playing from ahead," Isner said. "I like that situation a lot given the conditions and how I'm serving," Isner said. "I think it was not so much that he was feeling the heat, but the conditions were different. The ball was so lively. My serve is tougher during the day than it is at night ... the ball was getting up on him a lot."

- Associated Press