It was business as usual at Roland Garros as the top seeds advanced in the tournament. (All photos AFP)

Seven-time champion Rafael Nadal reached the French Open third round on Friday with a 4-6, 6-3, 6-3, 6-3 win over Martin Klizan of Slovakia.

Second seed Roger Federer reached the French Open last 16 on Friday with a 6-3, 6-4, 7-5 win over France's 30th seed Julien Benneteau.

Defending champion Maria Sharapova of Russia reached the third round of the French Open on Friday with a 6-2, 6-4 win over Eugenie Bouchard of Canada.

Serena Williams coasted into the last 16 of the French Open on Friday with a 6-0, 6-2 win over Sorana Cirstea of Romania.