Third seed Andy Roddick had no complaints when he lost in the first round of the French Open for the fourth time in his career on Tuesday, ousted 3-6 6-4 6-3 6-4 by Russian Igor Andreev, the world number 125.
It was a tough day for Americans with all eight U.S. men who completed their matches being beaten.
Roddick, who has never been beyond round three in Paris, led by a set and 4-2 but Andreev hit back to clinch victory in two hours, 43 minutes.
"I've had some disappointing losses here, but I actually felt like I played ok today," Roddick said.
"A lot of the credit has to go to him. This is a little bit different than the other years. I felt like I hit the ball all right."
For a set and a half, Roddick looked headed for one of his best wins on his weakest surface but the Russian broke back in the seventh game of the second set and again in the ninth on his way to levelling the match.
<b1>As Roddick's frustration grew, Andreev eased through the third set and a double-fault gave the Russian a 2-1 lead in the fourth.
Roddick continued to battle hard and forced a series of break points but Andreev held on to set up a clash with Chilean Nicolas Massu.
Roddick said there was little he could have done to change the outcome.
"I've been my own worst enemy here a lot of times, come in here and been pretty disappointed with myself," he said.
"(But) I didn't just bang my head against the wall today. I felt like I switched it up and tried some different things. I feel a little bit better coming out of this than I have in the past. But at the same time, same result."
Andreev said he knew going into the match that he had a good chance to cause an upset.
"Andy is a great player but maybe not on clay courts," Andreev said.
"So I knew that I would have chances to beat him. I just had to focus, concentrate and give 100 percent."
Eighth seed James Blake was ousted 4-6 6-4 7-5 7-5 by Croatian Ivo Karlovic.
Of the nine American men who started the tournament, Robby Ginepri is the last remaining.
He will resume his first-round match with Argentine Diego Hartfield, level at one set all.