Diego Costa (Top) of Chelsea is blocked by Shkodran Mustafi of Arsenal during the English Premier League match between Chelsea and Arsenal at the Stamford Bridge Stadium in London, Britain on Feb. 4, 2017. Chelsea won 3-1. (Xinhua/Han Yan)
Diego Costa (Top) of Chelsea is blocked by Shkodran Mustafi of Arsenal during the English Premier League match between Chelsea and Arsenal at the Stamford Bridge Stadium in London, Britain on Feb. 4, 2017. Chelsea won 3-1. (Xinhua/Han Yan)