Roger Federer has advanced to the third round of the US Open, beating Bosnian Damir Dzumhur 3-6, 6-2, 6-3, 6-4.
The 38-year-old third seed, who also dropped the first set against Indian qualifier Sumit Nagal in his opener, overcame a slow start to win the rain-affected match.
Japanese seventh seed Kei Nishikori has also progressed after eliminating American Bradley Klahn 6-2, 4-6, 6-3, 7-5.
Meanwhile, two-time women’s champion Venus Williams has crashed out following a 4-6, 4-6 defeat to fifth seed Elina Svitolina.
Elsewhere, Czech third seed Karolina Pliskova ousted 202nd-ranked Georgian qualifier Mariam Bolkvadze 6-1, 6-4.

Top contender Sabalenka faces fresh scrutiny at Wimbledon as mental scars linger
Munoz strike sends Colombia into World Cup Round of 32
Qatar's sports minister, Madibo visit Canada's injured Kone
Budimir gives Croatia win to eliminate Panama in Group L
England fail to break down Ghana in goalless draw
