Tommy Robredo has taken down the No. 1 seed at the Western & Southern Open.

The 32-year-old Spanish tennis player beat top-ranked Wimbledon champion Novak Djokovic 7-6 (6), 7-5 in the round of 16 at the ATP World Tour Masters 1000 event in Cincinnati, Ohio.

Robredo, the 16th-seed, beat a top-ranked player for only the second time in his career. The first time, he edged Lleyton Hewitt in the 2003 French Open.

“When I finish my career, and when I will be sitting at home and talking with friends, I will remember days like this,” Robredo said.

Djokovic, who has never won the event, dropped the first set after fighting back from a 6-3 deficit in the tiebreaker. Robredo took the set with an ace that Djokovic challenged. The replay showed the ball caught the slimmest sliver of the line.

Robredo failed to convert two match points before completing the victory with a slam on Djokovic’s short lob.

“It’s disappointing that I’m finishing Cincinnati again with a tough loss, but it’s the sport,” said Djokovic, who lost in the third round at Toronto last week. “I didn’t play well in Toronto, didn’t play well here. Hopefully, it’s going to be different in New York (at the US Open).”

Robredo had lost six straight matches against the Serb after winning their first encounter.

“I knew that if I wanted to win I had to go for it and try to hope that he will not play his best match,” Robredo said. “Both things happen and then I could win.”