"There is no question that his confidence is shaken. You see him in the locker room. He's saying it. He's not hiding it. He's just not feeling as comfortable as he was feeling last year. And even the matches he's winning, he's not dominating as much as he used to be," said Ljubicic, a French Open semifinalist in 2006. "But we all know that the more (the) tournament progresses, he's playing better tennis."