Halep cruises into 4th round after Petkovic tweaks knee in 2nd set

PARIS - Simona Halep has advanced to the fourth round of the French Open for the third straight year, beating Andrea Petkovic of Germany 7-5, 6-0.

The top-seeded Romanian has never lost to Petkovic, and four of her seven wins have been on clay. Petkovic needed treatment to her right leg and had it bandaged above and below the knee.

Halep has twice lost in the final at Roland Garros, including last year. She next plays 16th-seeded Elise Mertens of Belgium.

Mertens won 6-3, 6-1 against No. 24 Daria Gavrilova.