LONDON, Nov. 14 (Xinhua) -- Fifth seed Kei Nishikori shocked world No. 3 Stan Wawrinka of Switzerland on Monday at the ATP World Tour Finals at London's O2 Arena.
The Japanese star, who is playing the year-end finale for the third straight year, needed only 67 minutes to prevail 6-2, 6-3 in Group John McEnroe.
It is Nishikori's third victory over Wawrinka in seven meetings.
"I felt very comfortable out there," said Nishikori. "He wasn't playing his best. He made a lot of unforced errors. I see a lot of opportunities today."
Wawrinka, the oldest player in the field at the age of 31, did not create any break point opportunities. "It was not a great match, compared to what I [know I] can do," said Wawrinka. "It wasn't a great day for myself. In general, I think he played well and put a lot of pressure from the beginning. I don't think I found anything on the court today. I was a little bit slow on everything. I was hesitating a lot with my game [and] my movement." Enditem