WIMBLEDON, England (AP) — Roger Federer is still not sure whether he will compete at the Tokyo Olympics. He says he will reassess the situation after Wimbledon. The grass-court Grand Slam tournament begins Monday and ends July 11. The Summer Games open on July 23. Federer says that how things go at Wimbledon will affect his plans. Federer won an Olympic silver for Switzerland in singles in 2012 and a gold in doubles with Stan Wawrinka in 2008. Federer sat out the 2016 Rio de Janeiro Olympics because of a left knee injury. He missed most of last season while having two operations on his right knee.
