DUBAI (Reuters) - World number three Stan Wawrinka fell at the first hurdle in the Dubai Open on Tuesday, beaten 7-6(4) 6-3 by 77th-ranked Bosnian Damir Dzumhur.
"I was not good enough," Swiss Wawrinka, playing his first match since losing to Roger Federer in the Australian Open semi-finals, said. "I started well but it was a tough match. It was his day."
The 24-year-old Dzumhur, making his debut at the Dubai tournament, recovered from losing the first three games to outplay the second seed and three-times grand slam champion.
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He will next play Spain's Marcel Granollers next.
Top seed and world number one Andy Murray recovered from losing serve early in his match against Tunisia's Malek Jaziri before posting a 6-4 6-1 victory.
Murray, who suffered a bout of shingles since losing early in the Australian Open, was relatively untroubled as he set up a second round against Spain's Guillermo Garcia-Lopez.
(Writing by Martyn Herman; Editing by Alison Williams)