Jupp Heynckes said he enjoyed seeing Thomas Mueller return to form as Bayern Munich got their Champions League campaign back on track with a 3-0 home win against Celtic.

Bayern captain Mueller put the hosts ahead after 17 minutes before goals by Joshua Kimmich and Mats Hummels sealed the victory on Wednesday at the Allianz Arena.

The result leaves Bayern second in Group B on six points, three behind leaders Paris Saint-Germain and three clear of third-placed Celtic.

It was an important result for Bayern in the wake of their 3-0 drubbing in Paris three weeks ago, which led to Carlo Ancelotti's dismissal.

Heynckes, 72, came out of a four-year retirement for his fourth stint as Bayern coach to replace Ancelotti.

He restored Mueller to his preferred attacking midfield role, allowing him to happily roam just behind Robert Lewandowski, with Thiago Alcantara dropping into a deeper position.

"Thomas put in a good performance, he ran a lot, was very present and we saw the old Thomas Mueller," said Heynckes