
The home side took a shock lead in the 56th minute when Bayern failed to clear Viktor Claesson’s shot, and midfielder Lukas Lerager followed up with a clever bouncing drive to put the Danish champions in the driving seat.
Bayern struck back in the 67th minute as Jamal Musiala jinked left and right on the edge of the area before dispatching a low shot into the corner of the net beyond the dive of Kamil Grabara.
Making his 144th appearance in the Champions League, the 34-year-old Mueller teed up Tel for an 83rd-minute winner that puts Bayern top of the group on six points, two ahead of Galatasaray, who beat Manchester United 3-2 at Old Trafford to leave United bottom.