By Mark Jones Liverpool could have to fork out around a world record fee for a manager if they want to bring Xabi Alonso back to Anfield this summer. Alonso is the heavy favourite to replace the departing Jurgen Klopp at the end of the current season, with the German ready to call time on hugely successful spell on Merseyside which has brought the Premier League title, the Champions League, the Club World Cup, the FA Cup and two League Cups, the latter of which was won last month. There could still be a golden ending to Klopp’s reign as the Reds go for glory on three more fronts this season, b…