Rafael Nadal's record-tying sixth French Open title has helped him hold onto his No. 1 ranking, just ahead of No. 2 Novak Djokovic.
As of Monday, Nadal leads Djokovic by only 45 points - 12,070 to 12,025.
Djokovic would have moved up to No. 1 for the first time in his career if Nadal had lost to Roger Federer in Sunday's final at Roland Garros - or if Djokovic had beaten Federer in the semifinals two days earlier.
Federer stays at No. 3, followed by Andy Murray and Robin Soderling.
French Open champion Li Na, the first Chinese player to win a Grand Slam singles title, rose three places to a career-best No. 4 in the WTA rankings.
The top three women remain the same: Caroline Wozniacki, Kim Clijsters and Vera Zvonareva.