Gregorio Borgia, Associated Press
Novak Djokovic, of Serbia, returns the ball to Switzerland's Stanislas Wawrinka Sunday.

ROME — Having already displayed his prowess on hard courts this season, Novak Djokovic is showing he's capable of dominating on clay, too. Djokovic won the 10th title of his career Sunday, rallying to beat unseeded Stanislas Wawrinka 4-6, 6-3, 6-3 at the Rome Masters.

"I was aiming for Rome and Roland Garros as my two priorities on clay courts this season," Djokovic said. "Now I have more confidence approaching big events on clay, and other surfaces as well."

This tournament was an important warmup for the French Open, which begins in two weeks. The third-ranked Djokovic won the Australian Open in January for his first Grand Slam tournament title, then captured the Masters Series event in Indian Wells, Calif., in March. Djokovic's third victory of 2008 will move him within 310 points of second-ranked Rafael Nadal in the ATP rankings.

Djokovic, who will turn 21 later this month, has been winning more than Nadal and top-ranked Roger Federer lately. He reached his first Grand Slam final at the U.S. Open to end 2007, and has followed his win at Melbourne by taking two of the four Masters Series events so far this year.