Federer through after rare warning
ATHENS, Greece -- Swiss gold medal favorite Roger Federer lost his cool at the Olympics on Monday in a rare flash of temper but recovered to win his men's singles first round on Monday.
He beat Russian Nikolay Davydenko 6-3 5-7 6-1 but received an official warning for ball abuse after hitting it on to the roof of the center court in frustration at the start of the second set.
"It's a long time since I got my last warning," the world number one told a news conference in Athens.
"For me it was a sign, I needed to just show a reaction because I was unhappy with the way I played in the second set.
"I got frustrated. But the important thing is I won, not how I acted on court."
Federer eventually raced through the third set after switching to serve-volley tactics.
"I had to play fair against him and I played false when I served for the (second) set," he said.
"I am happy to be through. That's what counts in the end, not really how. I'd have liked to win in straight sets but it didn't happen."
The Swiss, who won the Australian Open at the start of the year and also successfully defended his Wimbledon title in July, is desperate for an Olympic medal having just missed out on a bronze at Sydney in 2000.
Federer now faces Czech Tomas Berdych who ousted German Florian Mayer 6-3 7-5..
Third-seeded Carlos Moya of Spain also moved through to the second round with a tight victory over Sweden's Thomas Enqvist, winning 7-6 6-7 9-7.
Moya needed two hours and 59 minutes to overcome his rival and had to save three match points in the final set, two serving at 4-5 and another serving at 6-7.
Both players struggled against the gusty condition, frequently double faulting.
Number seven Rainer Schuettler of Germany was one victim of the wind as he bowed out to Igor Andreev of Russia 6-7 7-6 6-3.
"It was a catastrophe," he said. "With this wind all you could do was try to keep the ball in court. He managed to keep a few more in me than me."
From the four German men at the Olympics, only Nicolas Kiefer and Thomas Haas have made it to the second round, with Haas set to face the number two seed Andy Roddick of the United States.
Number 11 seed Paradorn Srichaphan of Thailand meanwhile could not get past Joachim Johansson of Sweden, losing 6-2 6-3 in just 49 minutes.
Three-time French Open winner Gustavo Kuerten of Brazil was another casualty, going out 6-3 5-7 6-4 to 10th seed Nicolas Massu of Chile.
Among other results, Olivier Rochus of Belgian ran out a 3-6 6-0, 6-1 winner against Mark Philippoussis of Australia.