Murray, Wawrinka through to French Open 3rd round

World number one Andy Murray came from a set down to beat Martin Klizan and reach the French Open third round.

Murray lost the opening set on a tie-break but recovered to win 6-7 (3-7) 6-2 6-2 7-6 (7-3).

The Briton will now face Juan Martin del Potro after the Argentine progressed when his opponent Nicolas Almagro retired with a knee injury.

British number two Kyle Edmund also progressed after beating Renzo Olivo 7-5 6-3 6-1.

It is the first time Edmund has reached the third round of the French Open.

Murray, beaten by Novak Djokovic in last year's final, is bidding to win the tournament for the first time but struggled at times against Slovakian world number 50 Klizan.

"I expected it to be very tough," said Murray. "He goes for huge shots and on his forehand he can hit winners anywhere on the court.

"Sometimes you think you have hit a good shot and then he comes up with unbelievable power from a defensive position. It was very tough.

"I tried to play a solid match. As it went on I hit deeper and started to dictate more points."

In another match, former champion Stan Wawrinka found answers for Alexandr Dolgopolov's full repertoire as he advanced in straight sets.

Wawrinka came out on top of a cat-and-mouse encounter with Alexandr Dolgopolov to book his place in the third round at Roland-Garros, beating the Ukrainian 6-4 7-6(5) 7-5 on a searing Philippe-Chatrier Court.

The No.3 seed, champion here in 2015 and semi-finalist a year ago, will face Italian opposition in the third round in the form of either Andreas Seppi or Fabio Fognini.

Murray's next opponent Juan Martin del Potro was gifted a free pass into the next round after his second round opponent Nicolas Almagro's knee gave way in the third set with the score at 1-1.

Del Potro, the 29th seed, comforted the 31-year-old on court after he broke down in tears.

Seventh seed Marin Cilic, one of six men's grand slam champions in the draw, will also be in the next round after he claimed a comfortable 6-3 6-2 6-2 win over Russian Konstantin Kravchuk.

The Croatian hit an impressive tally of 37 winners during the match.

John Isner will join him in the next round, after his 6-3 7-6(3) 7-6(2) win over Italian Paolo Lorenzi.