Nadal, Thiem And Del Potro Reach Italy Open Quarter-finals

Italy open favourite Rafael Nadal's imperious start to the Claycourt season continued as he maintained his unbeaten streak on the surface this year with a 6-3 6-4 victory over 13th seeded American Jack Sock.

Nadal meets Dominic Thiem in the quarter-finals after the Austrian beat American Sam Querrey in a match that went down to the wire, with Thiem winning the match 3-6 6-3 7-6.

Argentine Juan Martin Del Potro beat Japan's Kei Nishikori in straight sets 7-6 6-3 and faces Novak Djokovic in the last eight.