A 14-year-old Chinese table tennis player ruined his chance of reaching the national youth set-up and missed a critical early-career development window after punching his opponent following a loss. Cao Yanhao was thrust into the public eye on Tuesday night when the Jiangsu Table Tennis Association issued a disciplinary notice imposing a provincewide reprimand, disqualifying his results, and banning him from provincial competitions for one year. The previous day, Cao lost 3-0 to teammate He...