MADRID, Spain (AFP) -- Real Madrid striker Kylian Mbappe is a doubt for the Clasico on May 10 after his club confirmed Monday he has sustained a thigh injury. "He has been diagnosed with an injury to the semitendinosus muscle in his left leg," said Los Blancos in a statement, after the France captain went off hurt during Madrid's 1-1 draw against Real Betis in La Liga last Friday. Madrid,...