Tennis star Daniil Medvedev was disqualified from his China Open semifinal match against Novak Djokovic after a ball he struck in frustration hit a fan in the face. The incident happened with Medvedev trailing 7-5, 5-3, but having won the first point on Djokovic’s serve. Djokovic, 39, got the better of him on the second point, and Medvedev took a frustration swing at the ball as it bounced toward him. The ball sailed into the stands where it struck a fan in the left eye. The fan appeared to be in pain and was assisted by stadium staff, according to The Guardian. Medvedev ex...