Roddick's performances viewed as extremes

Andy Roddick, who in the past six weeks has won tournaments at Eastbourne and Atlanta, says he cannot figure out why he isn’t consistent from week to week. The American was blown out in the second round of the Olympics by Novak Djokovic, 6-2, 6-1.

"I feel like it's extremes with me right now. If I win one, it's like career appreciation day. Then if I lose one, it's like we should take him out in the field and shoot him in the head," he told reporters with a laugh. "I don't think it's either. I'm playing as well as I have this year, so far in the last four or five weeks. I'll just try to forget about it and get back to the U.S. Open Series."