Carlo Ancelotti has backed his “friend” José Mourinho to succeed at Real Madrid, if he returns as the club’s next manager. However, Iker Casillas is less convinced. Mourinho is now the overwhelming frontrunner to take the hot seat at the Bernabéu next season, with some reports indicating that the 63-year-old is already in advanced talks over the role. If appointed Mourinho, whose first spell at Madrid lasted three years between 2010–2013, will re-sign for the club during a period of chaos, amid locker room infighting that has plagued a trophyless campaign. While he seemingly has backing from club president Florentino Pérez, Mourinho is far from a universally popular option to succeed Álvaro Arbeloa as Real Madrid manager. The two-time Champions League winner’s controversial first stint in the Spanish capital ended in acrimony , while he has not won a league title at any club since 2015. Mourinho Return Splits Fanbase José Mourinho is a divisive figure.…