The 36-year-old tennis star from Russia made the announcement after winning his first round match at the Atlanta Open 6-2, 6-0 over American Emil Reinberg.

"The time is over," the former world No. 8 said. The 10-time ATP singles title winner said he is looking forward to competing in a final grand slam at the US Open late next month, then wrap things up at the St. Petersburg Open which begins September 17.