Leonardo Mayer sets up Kyle Edmund clash, Hyeon Chung held up by rain
Leonardo Mayer beat Yuichi Sugita in straight sets to set up a second-round encounter against Kyle Edmund at the Winston-Salem Open.
The Argentine required just one hour and 30 minutes to beat Sugita 6-3, 7-6 (7-4).
Mayer will face third seed Edmund, who had a bye in his opener, in the second round.
Sixth seed Hyeon Chung and Guillermo Garcia Lopez will have to return on Tuesday to finish their first-round match as play was called off with the score 6-6 in the first set.
Meanwhile, fourth seed Marco Cecchinato was the biggest casualty in the final US Open tune-up event as the Italian suffered a 6-3, 6-4 defeat at the hands of Jan-Leonard Struff.
German Struff will face Nicolas Jarry in the second round after the Chilean defeated Andreas Seppi 6-4, 6-3.
American Tennys Sandgren set up a clash with 2017 runner-up Damir Dzumhur as he claimed a 6-4, 6-3 victory over Ricardas Berankis.
Other players who advanced on Monday were Taro Daniel, Jaume Munar, Taylor Fritz and Ryan Harrison.
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Rafael Nadal also back with a win.
Jo-Wilfred Tsonga withdraws from French Open and ends his 2020 season as injury nightmare persists
Frenchman goes back to drawing board.
Coco Gauff reveals she ‘feels quite comfortable on clay’ after recording her first ever red dirt win
Gauff up and running in Rome.
Dominic Thiem says he ‘expects’ to find Grand Slams easier after winning US Open title
Thiem has monkey off his back.
‘I don’t feel comfortable to go there and play Roland Garros’ – Nick Kyrgios goes on offensive again
Nick Kyrgios makes French Open decision.
Rafael Nadal says Novak Djokovic was ‘very unlucky’, but insists players should have ‘self-control’
Rafael Nadal adds his two cents on rival.
Two-time French Open runner-up Kim Clijsters explains why she won’t be playing at Roland Garros
Kim Clijsters not sure when she will play again.
‘Nice guy’ Dominic Thiem deserves US Open and ‘right behind Rafa’ to win French Open – Novak Djokovic
Djokovic welcomes Thiem to Grand Slam winners club.
‘I’m still not feeling 100% tennis-wise but I enjoyed it,’ says Kei Nishikori after first win in a year
Kei Nishikori gets a win under his belt in Rome.
Rafael Nadal double downs on Novak Djokovic-led PTPA criticism: ‘We should not pursue our own interests’
‘We are going through a world crisis,’ says Nadal.