Guillermo Canas snapped Roger Federer's 41-match winning streak Sunday, beating the world's top player 7-5, 6-2 in the second round of the Pacific Life Open.
"It was just a normal loss, like I've had about 100 times on tour," Federer said. "That's normal to tennis. I have no problems. He played very well. I missed my chances. I think he played very well and I didn't think I was playing poorly at all. So it's OK."
Federer had arrived at the Indian Wells Tennis Garden having won seven consecutive tournaments and was considered an odds-on favorite to break the record of 46 straight matches won by Guillermo Vilas of Argentina 30 years ago.
"It's no pressure at all because I take it match by match," Federer said of the streak to reporters. "You guys think it takes a win to break the record. I'm concerned about winning my first-round [actually second-round] match against a lucky loser. It just shows you how tough it is.
Canas, an Argentine who got into the tournament as a "lucky loser" from qualifying when Xavier Malisse withdrew, played more like a man who once was No. 8 in the world.
Canas went up 6-5 in the first set with a service break and held to close out the set.
"Today was just a grind for me from the start," Federer said. "I really felt I missed all the big opportunities today, to kind of come back and put the pressure on him. It just didn't seem to go my way."
During the break, Federer removed his shoes and summoned the ATP Tour trainer for the first of two times to attend to an undisclosed problem with his feet.
Federer stayed in the match for a while. But after Federer had a second visit from the trainer, Canas won the final three games of the set and threw open the championship of this $3.3 million tournament.
Federer said there was no problem with his feet, that he always tapes them from toes to ankles and that the tape "was not sticking the way it's supposed to, so I just took it off."
He did say, however, that he was bothered by blisters.
"I had problems with my toe [on right foot] but it was nothing bad," he said.
Federer played doubles after the lose with Swiss countryman Yves Allegro against David Ferrer and Tommy Robredo of Spain.
Canas returned to the tour in September after serving a 15-month drug suspension. Ranked No. 8 in the world in June 2005, he won his seventh title earlier this year and was ranked 60th when this event got under way. He lost to Alexander Waske in the final round of qualifying, though, and was on the way home until Malisse dropped out.
"[Canas] put me away when he had to," Federer said. "He played a perfect match in the end. He didn't give me any more chances. He served well. He didn't give me any unforced errors, and I was playing too poorly in the end to come back.
"The right guy won today."
The men's draw was full of upsets.
No. 19 seed Lleyton Hewitt lost 7-6 4-6 6-2 to Janko Tipsarevic.
Former world No. 1 Hewitt, who won the title in Las Vegas last week, injured his back in the first game and had trouble moving for the rest of the match.
"It didn't get any better the whole time," Hewitt said. "I knew something wasn't right. It affected me on movement and return of serve. I had to adjust my whole position.
"I'm a little concerned. It's frustrating because I've been timing the ball well."
Hewitt was watched by his former coach Darren Cahill, but the former U.S. Open and Wimbledon champion played down reports they might work together again.
"I have no idea," Hewitt said. "I still have to work things out and see where I want to go and see who the best person is to take me there."
American Mardy Fish, the 21st seed, had a 5-2 lead in the third set tiebreaker but lost the next five points and the match to Paul-Henri Mathieu of France, 7-6 (4), 4-6, 7-6 (5). American Michael Russell had better luck and toppled eleventh-seeded Tomas Berdych of the Czech Republic, 7-6 (2), 6-4. Dmitry Tursunov (20), Marat Safin (23), Dominic Hrbaty (24) and Radek Stepanek (25) also were upset victims.
Information from The Associated Press and Reuters was used in this report.