LONDON (AFP) - Wimbledon finalist Andy Roddick admitted on Friday that he was so depressed about his game 12 months ago that he was convinced he'd never reach another Grand Slam final. The 26-year-old American suffered his earliest exit here in 2008 when he was beaten in the second round by Janko Tipsarevic, a defeat which forced him to question his future at the highest level. Despite winning the US Open title in 2003, Roddick has yet to add a second major and his final date here on Sunday against five-time champion Roger Federer will be his first Grand Slam final since the 2006 US Open. But after discussing his future with wife Brooklyn Decker, Roddick decided to carry on and seek improvements in 2009. "Last year after I played here, that was a hard, hard couple of weeks," said Roddick, who reached his third Wimbledon final by beating Britain's Andy Murray 6-4, 4-6, 7-6 (9/7), 7-6 (7/5) in the semi-finals. "Brook and I had a lot of talks on if I still thought I could play and at least be towards the top of the game. I definitely openly questioned it at that point. "So this off-season, we said if you're not going to be up there, let's at least not wonder. Let's prepare yourself and give yourself every opportunity. "I did work real hard and have been committed from everything to diet to sleep to everything. I certainly gave myself every opportunity to succeed." Roddick has lost 18 of his 20 meetings with Federer, including the 2004 and 2005 finals here, but he insists those finals are history now and that he is under no pressure. The spotlight is very much on Federer who is chasing a sixth Wimbledon title which will take him past Pete Sampras's record of 14 Grand Slam titles. "I don't look back on the finals here negatively at all," said Roddick. "I've never made any apologies for making a Grand Slam final before. I certainly don't look back on those like that. "I know how tough it is. But I'm excited about this one. I didn't know if I was going to get to play a final of Wimbledon again. I'm certainly thankful to have that opportunity." Friday's win over Murray was only Roddick's third in nine meetings with the world number three. But he believes the 22-year-old Briton is a Grand Slam title winner in the making. "He's going to break through and win one of these titles, and probably numerous ones. He's too good not to. In my mind it's a matter of time. It's not if, but when," said the American.