Andy Murray suffered defeat in an ill-tempered match with Fabio Fognini. Roger
Murray, meanwhile, succumbed to Fognini in a three-set match which included a heated exchange in the deciding set.
Last season’s runner up Borna Coric, fell to Andrey Rublev, while third seed Daniil Medvedev beat Cameron Norrie in straight sets.
Defending champion Novak Djokovic will go up against Denis Shapovalov on Wednesday though got into his groove at the tournament with victory in the doubles alongside compatriot Filip Krajinovic.
World number three Federer decided to skip most of the Asian swing, though he did not need to be at his sharpest when he took on Ramos Vinolas, who had defeated him at the event in 2015.
The 20-time grand slam champion – who struggled with a back issue in his US Open defeat to Grigor Dimitrov – showed no sign of injury in a 6-2 7-6 (7-5) win on Tuesday, though he did make 31 unforced errors.
“I got out the blocks quick, played a good match,” Federer said. “Ramos had his chances in that tie-break up 4-1, that was a nice comeback there.”
Federer’s reward is a third-round tie with either David Goffin or Mikhail Kukushkin.
MURRAY GOES DOWN FIGHTING
The former world number one made it to the quarter-finals in Beijing last week, though did not have enough in the tank to overcome Fognini after squandering a chance to serve out for the win.
After failing to take his opportunity, Murray became embroiled in a spat with his opponent, who had earlier been handed a code violation for hitting a ball into the stand and throwing his racket at a court-side chair.
Murray, who had broken for a 6-5 lead in the decider before losing his next service game, complained Fognini had called out during a rally.
When the Italian attempted to interrupt Murray’s conversation with umpire Fergus Murphy, the Scot quickly shot him down, telling Fognini to “shut up”. Eventually, though, Fognini had the last word, triumphing 7-6 (7-4) 6-2 7-6 (7-2).