Germany captain Ilkay Gündogan has expressed surprise about the crisis at Bundesliga champions Bayern Munich and backed their coach Thomas Tuchel, while former Bayern captain Lothar Matthäus called for new leaders with a club history. “I am very surprised that Bayern are in such difficulties,” Gündogan told dpa. Bayern have lost their last three games in all competitions, 3-0 at leaders Bayer Leverkusen and 3-2 at Bochum in the Bundesliga and 1-0 at Italy’s Lazio in the Champions League. They have slipped eight points behind Leverkusen and must overturn the deficit against Lazio to stay in Eur…