Barcelona president Joan Laporta is a fan of Ralf Rangnick with the one-time Manchester United coach a shock candidate to replace Xavi at La Liga champions Barcelona. Amid reports suggesting that Jose Mourinho could make a remarkable return to the club where he truly began his coaching journey – working as an assistant to Sir Bobby Robson and then Louis van Gaal – another of Manchester United’spost-Sir Alex Ferguson hires appears to be in contention too for one of world football’s most high-profile roles. Few at Old Trafford will look back on Ralf Rangnick’s half-season spell in charge of the …