Julian Nagelsmann urged Bayern Munich to return to form swiftly after a 1-1 draw against Eintracht Frankfurt extended the Bundesliga leaders' "results crisis".

Randal Kolo Muani struck in the second half to cancel out Leroy Sane's opener and extend the defending champions' winless run in the Bundesliga.

Bayern have been held to three consecutive 1-1 draws since the league resumed after the World Cup and winter break, and they sit just one point ahead of Union Berlin at the summit.

With a Champions League showdown against Paris Saint-Germain just over two weeks away, poor form is a cause of concern and Nagelsmann went as far as to dub the situation a "crisis".

"In order to be able to play big games, you have to play the small ones in such a way that you are in a good run from the psychology point of view," he said after the game.

"We don't have too much time before the big games to get into this run. So, we must start at some point - the first step is always the hardest. It's a result crisis.

"The acceleration of the game was not good at all. In all three games, the opponent defended deeply.

"We also had a lot of situations today where we can use the very good players in spaces, but we played it almost exclusively on the wing.

"The opponent can adapt well to this. We should have done a lot more. There are a lot of points we really could have done better."

Thomas Muller, captain for the draw against Frankfurt, assessed the situation similarly and declared the performances are not good enough for a club of Bayern's stature.

"Frankfurt made it difficult for us. But the situation is as it is. We have to do better," Muller told Sky.

"Drawing three times – that's not possible, we're Bayern Munich. It is clear that we are dissatisfied, that we do not win three times in a row. It's brutally annoying."