Interim Arsenal coach Freddie Ljungberg has said the club will deal with Mesut Ozil internally after the midfielder reacted poorly to being substituted and subsequently booed during Sunday's 3-0 defeat at home to Manchester City.
Ozil, 31, looked upset as he was taken off for 19-year-old Emile Smith Rowe on the hour mark with his side 3-0 down, discarding his gloves and refusing consolation from interim assistant Per Mertesacker.
Ljungberg told reporters after the game: "I took Mesut off because I wanted some more energy in the team. How he reacts is up to him and we will deal with it later.