Tennis: Murray expects Wawrinka to cause headaches in quarters
NEW YORK (REUTERS) - Defending champion Andy Murray fears Stanislas Wawrinka has developed the confidence required to cause an upset in their US Open quarter-final at Flushing Meadows on Thursday.
Murray owns an 8-5 all-time record against the ninth-seeded Swiss but he lost to Wawrinka in their only meeting this year, a last-16 clash at the Monte Carlo Masters.
The British third seed said once a player of Wawrinka's calibre reaches a certain level of technical competence, confidence becomes the most important quality.
"If someone goes on the court not thinking they can win against you, then the match is as good as done," said Murray. "When they believe they can win, in an individual sport when you're just playing against one person, then you can cause an upset. It's as simple as that.