The second seed was leading by two sets to love and two-love in the third set against countryman, Laslo Djere when Djere threw in the towel due to an injury.
German fourth seed, Alexander Zverev, is also through to the third round. He recorded a straight sets victory over Alexandre Muller of France.
In the women’s singles, second-seed Aryna Sabalenka of Belarus, cruised into round three with a 6-3, 6-1 victory over Lucia Bronzetti of Italy, while third-seeded American, Coco Gauff, was just as impressive.
The 20-year-old defending champion accounted for German Tatjana Maria 6-4, 6-love.
--Reuters--