French Open: Stan Wawrinka Beats Dominik Koepfer To Move Into Round Three

Former champion Stan Wawrinka beat Germany’s Dominik Koepfer to move into the third round of the French Open.

Wawrinka, 35, who defeated Britain’s Andy Murray in the first round on Sunday, secured a 6-3 6-2 3-6 6-1 victory over the world number 61.

US Open champion Dominic Thiem also advanced as he beat American Jack Sock 6-1 6-3 7-6 (8-6).

Argentine 14th seed Diego Schwartzman was a 6-1 7-5 6-0 winner against Italy's Lorenzo Giustino.

The Italian had been involved in the second-longest match in French Open history on Sunday when his five-set win over Corentin Moutin, which ended with a score of 18-16 in the fifth, took six hours and five minutes.

But Schwartzman completed a comfortable win on Wednesday.

Thiem, who won his first Grand Slam title earlier this month when he beat Alexander Zverev at Flushing Meadows, continued his excellent form as he took the opening two sets and fought back from 6-3 down in a tie-break to seal the win.

Earlier in the day, Wawrinka dominated the opening two sets and looked in complete control before Koepfer won the third set - the only time he broke the Swiss three-time Grand Slam champion's serve.

However, the 16th seed easily won the final set in 30 minutes to advance.

Wawrinka will play either unseeded Frenchman Hugo Gaston or Japan's Yoshihito Nishioka in the next round.

Veteran John Isner lost on day four at Roland Garros, the 21st seed beaten 6-4 6-4 2-6 6-4 by fellow American Sebastian Korda.

The 20-year-old, who had to battle through three qualifying rounds last week, is ranked 213th in the world and had never won a Grand Slam main-draw match before this tournament.