WIMBLEDON, England (AP) — Ryan Harrison left the Olympics with a mangled racket as a souvenir. Donald Young departed with his losing streak intact. Christina McHale bid farewell after receiving a sympathetic hug from Michelle Obama.

It was a difficult day for first-time Olympians in U.S. tennis. Among the rookies, only John Isner managed a victory Saturday, beating Olivier Rochus of Belgium 7-6 (1), 6-4.