Bayern Munich's busy schedule impacted their performance against Celtic in the Champions League, claims Vincent Kompany.

Alphonso Davies bundled in a last-gasp goal to rescue a 1-1 draw on Tuesday at the Allianz Arena, which sealed a 3-2 aggregate win for Bayern.

The Bundesliga leaders have now qualified for the last 16 of the Champions League in each of the past 17 seasons.

Bayern were fortunate, though, not to have conceded more than just once, with Nicholas Kuhn having put Celtic ahead in the 63rd minute.

"We always talked about how many matches we have in six days," Kompany told reporters.

"It is simple. The first half could have been better, the second half was good. We had chances and could have scored more goals.

"It is not easy to get through such a programme. You have to see it in this context. Our goal is for performance and results to match, starting Sunday."

Bayern, who have an eight-point lead over second-placed Leverkusen in the Bundesliga, could be without Harry Kane on Sunday at home to Eintracht Frankfurt, who are five points further back in third, with the striker taken off at half-time.

"We were in Glasgow on Wednesday. Then Leverkusen. Big energy output. It is normal after the second game to take an extra day to recover," Kompany said, adding that Kane's knock to the face in the game at Leverkusen had not been serious.

"He [Kane] gave the thumbs up this morning, but during the game he felt like he wasn't fully able to help the team.

"We did not want to take the extra risk. How long or if he is injured, I still don't know."

Bayern's goal, timed at 93 minutes and 12 seconds, was the club's latest equaliser in a Champions League match (excluding extra time) since at least 2003-04, when Opta's records began.