Nishikori races into fourth round

Skiing leading the way for equality says top earner Shiffrin

The fourth seed needed just 63 minutes to beat Troicki, with the Serb having no answers to Nishikori's polished all-round game.

The 25-year-old Nishikori sent down five aces and hit 16 winners against an opponent who was struggling with a side injury which required treatment.

Nishikori broke Troicki three times in the opening set, although he would surrender one break, before adding a further two breaks to his tally in the second set.

The Japan ace, who made the semi-finals of the tournament last year, will face 18th seed David Goffin in the round of 16.

Fifth seed Milos Raonic had a much more challenging time of it, the Canadian needing three sets to see off Jeremy Chardy of France 6-1, 5-7, 7-6 (3).

After easing through the first set, Raonic served for the match at 5-4 in the second, but Chardy was in no mood to go down without a fight and rattled off consecutive breaks to take the set.

With neither player able to grab a break in the decider, although Raonic staved off two break points, the set headed into a tiebreaker, and it was here that Raonic just found the edge, taking the breaker 7-3 and with it the match.