The former Dortmund striker was given a much deserved rest over the weekend, as he wasn't even in the squad for the narrow victory over Koln.
Fresh and raring to go, he'll be put right back into the starting line-up for Champions League duties.
Leon Goretzka, Lucas Hernandez, and David Alaba were all rested from the starting XI in the game over Koln, too, and should be recalled for the game against Salzburg.
Hernandez is a certain starter due to the absence of Alphonso Davies, who could miss up to six weeks of action after suffering an ankle injury against Eintracht Frankfurt.
Flick will probably restore his senior players to the starting XI for this one.
But, Bayern have the small matter of Der Klassiker against Dortmund next weekend to think of, so his team selection may be influenced slightly by that fixture.
Serge Gnabry completed near enough the entire game against Koln after recovering from coronavirus quarantine, and is in line to start this one.
Leroy Sane was substituted just after the hour mark on Saturday, and could be rested for the Dortmund game, with Kingley Coman coming in on the wing.
On Monday, Flick announced that Niklas Sule had tested positive for coronavirus and would miss the game. That should mean a pairing of David Alaba and Jerome Boateng at the back.