Celtic will have improved as a team if they finish third in their Champions League group and qualify for the knockout stage of the Europa League, according to former Hoops striker Alan McInally. "Bayern are still a top, top side and have players who will thrive on the atmosphere".
Heynckes will have to improvise in attack against the Scottish champions, who equalled their own 100-year-old British record at the weekend by extending their unbeaten domestic run to 62 matches.
French wide man Franck Ribery and German stopper Manuel Neuer also miss the German giants' visit to Glasgow, while defenders Mats Hummels and Joshua Kimmich only make the bench.
"You can play a 4-4-2 with Arjen Robben and Kingsley Coman up front or you can put both on the wing and use a midfielder as a false mine", he said at the pre-match press conference.
"Every team faces difficulties with injuries, many other teams in the Champions League experience the same but we find solutions".More news: Alvaro Morata refutes unhappiness at Chelsea, says he'd sign for '10 years'
"It looks like a hamstring so we'll get a scan on that".
"It's unfortunate but the squad's there to cope".
Thanks to his heroics, Bayern's youngsters will go through to the second round of the competition, with ten points from their four games - three ahead of Paris Saint-Germain, who surprisingly lost 3-2 against Anderlecht, having been two goals ahead.