Berlin: Even perfectionist Pep Guardiola could not fail to be impressed with Bayern Munich's spectacular performance in the first half of the Bundesliga season to finish 2014 with more league records.


Bayern Munich players celebrate their 2-1 win over Mainz. Pic/AFP 

Arjen Robben's last-minute winner sealed Bayern's 2-1 comeback victory at Mainz as Friday's battling display further extended Bayern's huge 11-point lead.