Spain's Nadal beat Malaysian qualifier Michael Mmoh 6-1, 6-4, 6-2 to ease into the third round, where he will face Britain's Cameron Norrie. Greek fifth seed Stefanos Tsitsipas had to dig deep in a five-set thriller against Thanasi Kokkinakis. In a match that involved two tie-breakers, Tsitsipas eventually won 6-7 (5), 6-4, 6-1, 6-7 (5), 6-4. He faces Mikael Ymer of Sweden in the third round.
Czech sixth seed Karolina Pliskova beat American Danielle Collins 7-5, 6-2 and will face compatriot Karolina Muchova in the third round. Ukranian fifth seed Elina Svitolina beat American teenager Coco Gauff 6-4, 6-3 and will face Kazakhstan's Yulia Putintseva.
--IANS rkm/qma
