They can not function as a team while he continues to throw a strop every time he does n't get the ball .
Alexis Sanchez is Arsenal 's best player but also their worst enemy .
Arsenal can not function as a team while Alexis Sanchez continues to throw a strop every time Alexis Sanchez does n't get the ball .
Alexis Sanchez is Arsenal 's best player but also their worst enemy .