London: Stanislas Wawrinka received a much-needed confidence boost with a 6-1, 6-1 victory over Tomas Berdych on Monday in his opening round-robin match at the ATP World Tour Finals.
Serving and returning impeccably, the Australian Open champion outclassed his Czech opponent with a range of backhand and volley winners. He was also well aided by Berdych's abject display, as the sixth-seeded heavy hitter lost his opening match at the season-ending tournament for the fifth time in as many attempts.
"Unfortunately, it was my worst match of the whole season, and I kept it for the start here in the World Tour Finals," Berdych said. "I did not feel anything good today."