Bayern Munich boss Carlo Ancelotti has been under a little pressure despite his side sitting seven points clear at the top of the Bundesliga.
Wednesday’s result saw them break a Champions League record as they sealed their 16th consecutive home win.
But the former Chelsea and Real Madrid boss refused to say the tie was over before the return leg at Emirates Stadium on 7 March.
“The performance was good,” said the Italian, who has won the Champions League three times as a manager.
“We played really well, but it’s not the final. We need to play the second game unfortunately.
“The result is really important, but we don’t want to make a mistake. We have an advantage but we have to prepare for the next game in London.
“We want to play like we did tonight – same intensity, same spirit, same concentration. We want to avoid problems.”