Novak Djokovic won his 15th straight match and advanced to the semifinals of the Paris Masters by beating Stanislas Wawrinka of Switzerland 6-1, 6-4 Friday.

The second-seeded Serb saved all six break points he faced while Wawrinka dropped serve three times. He clinched the victory when Wawrinka's backhand sailed wide.

Wawrinka lost five-setters against Djokovic at the Australian Open and the U.S. Open this year.

Djokovic next plays either Roger Federer or Juan Martin del Potro.

(For more sports news and updates, follow Ahram Online Sports on Twitter at @AO_Sports and on Facebook at AhramOnlineSports.)