Borussia Dortmund coach Lucien Favre is expecting Jadon Sancho and Mats Hummels to be involved in Tuesday's Klassiker against Bayern Munich, while Axel Witsel could also be in the squad.

Dortmund host Bayern in a potentially vital match for the title race, with Favre's side heading into the clash four points adrift of the pacesetters.

Both sides have resumed their Bundesliga campaigns following the coronavirus-enforced hiatus with a pair of wins – Dortmund beating rivals Schalke and Wolfsburg, while Bayern eased past Union Berlin and Eintracht Frankfurt.

Favre has had to contend with injury problems since the resumption, however. Sancho has only been fit enough to make two substitute appearances, Hummels was withdrawn halfway through Saturday's 2-0 win over Wolfsburg with an Achilles issue and Witsel has missed the past two fixtures with a muscular problem.

But there is a chance all three could take part in some capacity.

"I think Mats Hummels will be okay to play. I can't say for sure, but I'm 99 per cent [sure] he will be on the pitch," Favre said.

"Axel Witsel started to train with the team yesterday [Sunday]. He could be in the squad.

"Jadon was lacking training. He has now been training with the squad for 10 days. He played 20 minutes against Schalke and a little more against Wolfsburg. He did well. He is getting there slowly.

"He did well in training and slowly but steadily gets back to his old level. He is getting there, I don’t see a problem – we'll see."

Bayern warmed up for the trip to Dortmund with an entertaining 5-2 win over Frankfurt – Thomas Muller and Alphonso Davies catching the eye in particular for Die Roten.