After their humbling by Paris Saint-Germain last time out, which cost Carlo Ancelotti his job, Bayern Munich and new coach Jupp Heynckes got their Champions League campaign back on track with a comfortable 3-0 win over hapless Celtic, courtesy of goals from German internationals Thomas Muller, Joshua Kimmich and Mats Hummels.
Bayern have won 11 in a row at home in the group stages and took firm command of second place in Group B ahead of the return fixture in Glasgow in 13 days' time.
Bayern understandably took their foot off the gas after the third goal but better teams than Celtic would have punished them for their slack play late on.
Manager rating out of 10
9 -- A dream start for Heynckes on his first Champions League game since "El Teutonico" at Wembley in 2013 against Jurgen Klopp, Robert Lewandowski and Hummels of Borussia Dortmund. The 72-year-old has revitalised Bayern's fortunes within a couple of weeks. No doubt, Celtic will consider themselves rather unfortunate to meet Heynckes's unit rather than the shell on display in Paris last month.
Player ratings (1-10; 10 = best. Players introduced after 70 minutes get no rating)
GK Sven Ulreich, 8 -- Three decent reflex saves in the second half and has not let in a goal since he spoke to ESPN FC six days ago.
DF David Alaba, 8 -- Formed a fantastic partnership with Kingsley Coman down the Bayern left, always prominent in attack, while hardly tested defensively.
DF Mats Hummels, 8 -- Scored on his first Champions League outing this season after twice being snubbed by Ancelotti, nodding powerfully home from an Arjen Robben corner. Otherwise, he enjoyed a leisurely evening against Leigh Griffiths, Scott Sinclair and Patrick Roberts -- admittedly not of the calibre of PSG trio Neymar, Kylian Mbappe and Edinson Cavani.
DF Jerome Boateng, 8 -- Watched the drubbing in Paris from the stands but was immediately recalled by Heynckes to the centre of defence alongside Hummels to resume Germany's 2014 World Cup winning partnership at club level.
DF Joshua Kimmich, 9 -- Kimmich's looping header from a cute Coman cross doubled the lead, his fifth Champions League goal in 20 games. Kimmich certainly has one over the man he replaced, Philipp Lahm, who never scored in Europe's top club competition. Came off to a standing ovation with 10 minutes to play.
MF Sebastian Rudy, 8 -- Chosen ahead of the more celebrated Arturo Vidal, the free transfer signing from Hoffenheim goes about his work unobtrusively but to maximum effect.
MF Thiago, 8 -- Gracefully elegant throughout but caught heavily late in the first half by Roberts. Predictably, the first to be given a breather at 3-0 on 66 minutes with the games coming thick and fast.
MF Kingsley Coman, 9 -- Full of zest and running on the left, testing the overworked Craig Gordon repeatedly on his best game for the club since joining from Juventus in 2015.
MF Arjen Robben, 7 -- Could not find a goal on his 100th career game in the competition and 60th for Bayern, but Heynckes has got him doing the dirty work, even back defending in his own half.
MF Thomas Muller, 8 -- So often cruelly out of luck under Ancelotti, Bayern's record Champions League goalscorer was in exactly the right spot to poke home the crucial opener, his 40th in 92 games. He is the first German player to score in 10 separate Champions League seasons. Bayern's captain was denied another at the death by another fantastic Gordon save.
FW Robert Lewandowski, 7 -- His header was saved brilliantly by Gordon but Muller was on hand to poke home. This was typical of the Poland international's fortune in front of goal on the night and he somehow failed to score, despite having a host of shots on goal, finding Gordon in inspired form in the Celtic goal.
MF Arturo Vidal, 7 -- Replaced Thiago for the final 25 minutes with the game in the bag and threatened Gordon's goal on numerous occasions to no avail.
MF James Rodriguez, N/R -- Largely anonymous after coming on for Coman for the final 13 minutes and too late for a rating.
DF Rafinha, N/R -- Replaced Kimmich for the final 10 minutes; more or less a regular under Ancelotti but the versatile Brazilian will struggle to pick up the same amount of minutes under Heynckes.