KEY BISCAYNE, Fla. (AP) -- Tomas Berdych advanced Tuesday to the quarterfinals of the Miami Open when Gael Monfils fell and hurt his hip.
The No. 8-seeded Berdych was leading 6-3, 3-2 when Monfils retired. Monfils, seeded 17th, said he bruised his hip but hopes to be able to play in his next scheduled tournament in Houston.
Berdych, the runner-up at Key Biscayne in 2010, remains in title contention after saving four match points against Bernard Tomic in the third round.
Unseeded Dominic Thiem of Austria advanced by beating No. 28 Adrian Mannarino 7-6 (5), 4-6, 7-5.
No. 1 Novak Djokovic and No. 3 Andy Murray had fourth-round matches scheduled later Tuesday.