The reason mitrovic doesn't get played is because he is lazy in training and he is a liability on the field .Rafa doesn't rate him so why should he play ,he can't be arsed in training so why get the shirt in front of someone else who is grafting in training.Giroud at arsenal doesn't get played and gets benched yet for me he is one of the best strikers in the prem.The thing is giroud gets on with it and when he comes on he grabs a goal.Anyway mitrovic will be sold soon enough .