Former champion Angelique Kerber, who returned to action for the first time in seven months, beat Australian Ajla Tomljanovic 6-4, 6-4 on Monday to reach the second round of the US Open.
The 17th-seeded German, who entered the match having not competed since the fourth round of the Australian Open, overcame a shaky start on serve and got better as the 88-minute match at Louis Armstrong Stadium wore on.
Kerber, who triumphed here in 2016, traded breaks through the first four games of the match and then found her footing to take over the match.
The German southpaw converted all three break point chances to pull ahead 5-4 and then went on to serve out at love to grab the first set. In the second, Kerber settled into a groove and broke her opponent twice before sealing the win on her third match point when a Tomljanovic forehand sailed long.
The Czech Republic’s 12th seed Marketa Vondrousova became the first player to win a match after she beat Greet Minnen 6-1, 6-4.
