Swiss professional tennis player Stan Wawrinka has beaten Argentina player Juan Martin Del Potro in four set marathon of the U.S. Open on Wednesday.
On Day 10, He defeated Argentina Player with a score of 7-6(5) 4-6 6-3 6-2 and won the match.
Argentina Player had missed nine matches as he was having wrist surgery. In the second round of the match, he defeated Wawrinka and achieved silver medal at the Rio Olympics.
In 2014, Australian Open Winner Wawrinka will next play with Nishikori of Japan who defeated world number two Andy Murray in five sets of their quarter-final.
On Friday, the other players will play in the semi finals against Novak Djokovic and French 10th seed Gael Monfils.