By Henry Burt Pep Guardiola has offered a withering response to Zlatan Ibrahimovic’s suggestion that the Manchester City manager’s ‘ego’ could prevent him from getting the best out of star striker Erling Haaland. Ibrahimovic, who famously did not get along with Guardiola during the pair’s single season together at Barcelona more than a decade ago, expressed his admiration for Haaland in a recent interview but questioned the manager’s ability to improve the 22-year-old Norwegian. Ibrahimovic said: “It depends on Guardiola’s ego, whether he lets him become bigger than he is or not. Why didn’t he…