PARIS (Reuters) - Defending champion Rafa Nadal defeated big-serving Ivan Ljubicic on Monday in straights sets for the fourth time in as many clay court encounters to march into the French Open quarter-finals.
The world number one and five-times Roland Garros champion defeated Croatia's Ljubicic 7-5 6-3 6-3.
He will next face twice finalist and fifth seed Robin Soderling of Sweden or 18th-seeded Frenchman Gilles Simon for a place in the last four.
(Reporting by Julien Pretot; Editing by John Mehaffey)
