Washington: Somdev Devvarman eliminated defending champion Alexandr Dolgopolov 6-3, 7-6 (7/4) on Tuesday at the $1.76 million ATP and WTA Washington Open.
World number 129 Devvarman, a two-time US college champion ranked 104 spots below Ukranian ninth seed Dolgopolov, advanced to the round of 16, where he could face US eighth seed John Isner on Thursday.
"I'm very happy. That guy is a tough player, no question," Devvarman said. "I played really well. in the beginning. he gave me a couple errors to break him.