By Piers Newbery
BBC Sport at Wimbledon
Andy Roddick paid a glowing tribute to Roger Federer after losing to the Swiss in the Wimbledon final.
Federer beat Roddick 6-2 7-6 6-4 in a repeat of last year's final.
"He's probably as close as there's been to unbeatable," said Roddick. "I felt like I played decent, the stats were decent and I got beat in straight sets.
"He's become so solid mentally. You're not stretching far to make the argument he's the best ever. I don't know many people in history who could beat him."
Roddick put on a brave face in front of the world's press as he admitted he had been outclassed again.
"He played head and shoulders better than last year," said the American. "He had 49 winners and 12 errors and I was bringing heat. I was going at him.
"You have to say 'too good' sometimes. Let's hope he gets bored.
"I went in on his forehand and he passed me; I went in on his backhand and he passed me; I stayed back and he passed me even though I was at the baseline.
"It deflates you and puts more pressure on you. You think maybe I've got to do something better and I don't know if I can. It's frustrating.
"During the match you're trying to find a way to come through. There's only so much you can do.
"Regardless of what he's doing, you have to keep yourself going and not get discouraged."
Despite his record of one win in nine matches against Federer, the world number four refused to feel sorry for himself.
"I don't know if I'd change it," he said. "If you can't beat the best, you don't deserve these titles.
"I'm just going to continue to work hard, I'm not going to sulk and cry."
And of his opponent, Roddick said: "I have loads of respect for him. I've told him 'I'd like to hate you but you're too nice'."