Roddick first reached the world's number one ranking in November of 2003 but has since dropped to 6th in the rankings. The 25 year old took his lone grand slam victory in 2003 at the US Open before losing three times to world number one Roger Federer in his other grand slam final appearances; twice at Wimbledon and once at the US Open.

Despite a slump of sorts, Roddick still remains the top ranked American player and still holds the record for the fastest serve hit ever on the ATP Tour at 155 miles per hour.

Roddick also had declined to represent his country in the Olympics, choosing instead to rest and prepare for the US Open. The Olympic games are scheduled to be played only weeks before the US Open in China.

Roddick should have time before the US Open to clean up his game, which today he felt was lacking.

“Something doesn’t feel comfortable,” Roddick said. “I keep feeling if I get a couple, three, four matches into a tournament I’ll be all right.”

“I’m not able to do that. It was pretty ordinary out there today.”

“It’s a little bit across the board,” said Roddick. “(My) forehand is just not doing anything. I’m missing it. That’s the one that I need to click right now.”

Roddick's anger was apparent against Cilic as he smashed rackets and argued with the chair umpire, but he remained philosophical in defeat.

"What can you do? You go out there,” he said. “You’re not going to fix anything on the bench, that’s for sure. You try to deal with it. All it takes is one event, couple matches, to turn things around. It’s happened a million times.”

“You know, hopefully it’ll happen next week.”