Manchester United's new manager, Louis van Gaal, reportedly ready to rival Arsenal and Chelsea for the signature of Bayern Munich striker Mario Mandzukic as a player after being appointed as the first United manager. 

Van Gaal was officially introduced as United manager on Monday (19/5). The man from the Netherlands signed a three-year contract. 

According to the Daily Mail, Mandzukic Bayern preparing for the exit after a clash with Pep Guardiola. Former Barcelona coach was reportedly not happy with the attitude of Mandzukic.