By Toby Cudworth Luka Modric has vowed to do all he can to help Kylian Mbappe settle in at Real Madrid, and admitted taking on the club captaincy is “something very beautiful”. The Croatian veteran ended speculation over his future by signing a new one-year contract on Wednesday, providing stability for the 15-time Champions League winners after the surprise retirement of long-time midfield partner Toni Kroos. Not only did Modric pen fresh terms to extend his stay in the Spanish capital into a 13th year, he was confirmed as the club’s new captain after the departure of Nacho Fernandez. Speakin…