Roddick still hungry for grand slam success

"You know, when you've seen the Rolling Stones from the front row, and then all of a sudden you're like seven or eight rows back and there's a really tall guy in front of you waving his hands and screaming, you can't see much, it's not going to be as good as the other show," he said.

"That's kind of what you're going to remember. Maybe you got to kind of get some baby steps to get back there."

Roddick said after winning the Davis Cup last year as part of a United States team that it felt on a par with his U.S. Open triumph, but predicted that another grand slam triumph could top both.

"It probably would be better than anything I've felt in tennis before."

(Editing by Pritha Sarkar)