Nadal and Federer advance; Bedene retires at Shanghai
Shanghai: Rafael Nadal and Roger Federer both registered straightforward victories to move into the third round of the Shanghai Masters.
World number one Nadal needed just 54 minutes to beat America's Jared Donaldson 6-2 6-1.
Federer, chasing his 94th ATP title, found his rhythm as the match progressed to beat Argentine Diego Schwartzman 7-6 (7-4) 6-4.
Nadal plays Fabio Fognini next, while Federer faces Alexandr Dolgopolov.
Nadal, who leads world number two Federer in the rankings by 2,370 points, did not face a break point as he raced to victory over Donaldson. Federer took a little longer to find his rhythm but 38 winners ensured his place in the second round.
Earlier, Britain's Aljaz Bedene was forced to retire from his second-round match against Germany's Alexander Zverev with a knee injury.
Bedene, ranked 48th in the world, was trailing 4-0 when he ended the match after just 12 minutes on court. It is the second time in two weeks that Bedene has retired mid-match, and the seventh time in his career.
World number four Zverev will go on to play Argentina's Juan Martin del Potro in the third round.