straight to your inboxPep Guardiola's ego has prevented him from replicating his success at Barcelona, according to Germany legend Lothar Matthaus.Guardiola has not won the Champions League since leaving Barcelona, or even reached a final, but has won 13 domestic trophies - including five league titles - at Bayern Munich and Manchester City in eight seasons.That is not good enough for Matthaus, though, with the 1990 World Cup winner calling Guardiola 'egocentric' for his insistance on changing