The drubbing went on from there. Nadal won his fourth consecutive French Open title in a rout Sunday, again spoiling Federer's bid to complete a career Grand Slam.
Dominating the world's No. 1 player with astounding ease, Nadal swept six consecutive games early in the match and swept the final nine games to win 6-1, 6-3, 6-0.
It was Federer's worst loss in his 173 Grand Slam matches, and the most lopsided men's final at Roland Garros since 1977.
So thorough was the thumping that during the trophy ceremony, Nadal was moved to apologize.
"Roger, I'm sorry for the final," Nadal said.
It was merely another in a series of dominating victories by the Spaniard, who lost only 41 games in seven rounds.
"I've hoped I could have done better today than four games," Federer said. "But Rafael was very strong this year."
The No. 2-ranked Nadal became the second man to win four consecutive French Open titles. Bjorn Borg did it in 1978-81.
"Winning four times in a row is incredible," Nadal said. "The comparison with Borg is always very nice, especially because he's much better than me."
Nadal improved to 28-0 at Roland Garros, where he has won 83 of 90 sets. Only six-time champion Borg won more French Open men's titles. And Nadal became the first man since Borg in 1980 to win the tournament without dropping set.
"He dominated the tournament like never before, like Bjorn," Federer said.
For the fourth consecutive year, Federer arrived in Paris seeking to become the sixth man to win all four major titles. Each time he has lost to Nadal -- in the semifinals in 2005, and in the final each of the past three years.
Federer conceded the latest defeat shakes his belief he can win Roland Garros.
"After a loss like this you, don't want to play Rafa again tomorrow, that's for sure," Federer said.
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