 Complete the following phrase:  Roddicks next tournament was the 2009 China Open in Beijing, where he was the defending champion. In a shocking upset, he was defeated in the first round by Polish qualifier and No. 143 Łukasz Kubot. He also played doubles at the event with Mark Knowles. The pair reached the final, losing to Bob and Mike Bryan. Roddick was forced to retire from his first-round match at the 