Bayer Leverkusen are further closing in on a maiden Bundesliga title but may have a hard time celebrating in style if it becomes reality because they could become a victim of their own vast success. Bayer beat Wolfsburg 2-0 on Sunday to retain a 10-point lead over Bayern Munich with nine matchdays left, and their unbeaten record all season reached 36 games in all competitions. Xabi Alonso’s men were undeterred by Bayern’s 8-1 thrashing of Mainz the previous day, and keeping their feet on the ground as much as possible. “We deserve to be where we are because we are only looking at ourselves. An…