They do say you should ‘never go back’. See Jose Mourinho’s second spell at Chelsea, a Premier League title one year and then a remarkable unravelling in the next. Robbie Fowler’s Liverpool homecoming, meanwhile, was less the Return of the King and more a tragic attempt to recapture the happier times. Claudio Marchisio, meanwhile, feels like that famous old cliche is best summed up by his former team-mates ill-fated, six-year spell at Manchester United between 2016 and 2022. A man who returned to Old Trafford amid proclamations of glory and departed with barely a whimper, his contract terminat…