By Toby Cudworth Xabi Alonso could be at the centre of a tug of war between Liverpool and Bayern Munich, with a release clause in his Bayer Leverkusen contract applicable to both European giants as well as Real Madrid. The footballing world was rocked on Friday by Jurgen Klopp’s decision to leave Liverpool at the end of the season, two years before his contract is due to expire at Anfield, and Alonso was immediately installed as favourite to return to the club he represented as a player between 2004 and 2009. Alonso’s stock as a manager has risen exponentially after transforming the fortunes o…