(CNN) -- Struggling Marat Safin denied he would quit tennis after falling to a humiliating defeat at the ATP Masters Series tournament in Miami.

Safin endured a frustrating time against Reynolds and made 46 unforced errors.
Two-time grand slam champion Safin lost to American qualifier Bobby Reynolds 7-6 4-6 7-6 in the opening round, his fifth straight defeat in 2008 against a solitary victory.
The 28-year-old Russian, who has suffered a string of injuries, said he was now healthy and not tired of tennis.
"If I was tired, I would have stopped a long time ago," he told the Associated Press.
"I'm trying, and it doesn't come out my way. But that doesn't mean that I have to stop because I'm not winning matches. I enjoy what I'm doing. I have plenty of cash to do what I want to do, so what I want to do is play tennis."
Safin has not won a title since the 2005 Australian Open, and his ranking has fallen from 56th to 90th since the start of the year.
After winning the opening set on a tiebreaker, Safin was broken for the only time in the match in the second set as Reynolds, ranked 104 in the world leveled.
Safin led 3-1 in the deciding set tiebreaker but unforced errors cost him dear as Reynolds took the victory.
American Mardy Fish, who beat Roger Federer on the way to a runner-up finish last week at Indian Wells, also crashed out to Frenchman Arnaud Clement, 6-3 6-3.
"It's obviously a little disappointing to go out so early here," Fish said. "But I'm going to take a lot of memories from last week," he told Associated Press.
In the accompanying WTA tournament, Ai Sugiyama beat Russian 17-year-old Anastasia Pivovarova 6-3 7-6.
Another Russian, 19-year-old qualifier Alisa Kleybanova, beat Olga Govortsova of Belarus 6-3 6-7 6-2.
Seeded players had first-round byes and begin action on Friday. E-mail to a friend ![]()
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