Nadal said in a statement Thursday it is one of the saddest moments of his career and that he will not travel with the Spanish delegation to London. He was set to be the flag bearer for Spain during the opening ceremony. Nadal won gold in Beijing in 2008. Nadal has not played since he was eliminated in the second round of Wimbledon to then 100th-ranked Lukas Rosol. (For more sports news and updates, follow Ahram Online Sports on Twitter at@AO Sportsand on Facebook atAhramOnlineSports)