Correction. Injury is part of life's ups and downs. This is not a difficult concept, man. The Sinnerman went 5 sets with his 'screwed up' foot and lost. He was not playing polo, for sure. Good job you noticed he was playing on his feet. That is precisely the point. No one plays 5 sets with a 'screwed up' foot. He's a great player / kid, and will have his 'ups' again soon, no doubt.