Bayern's Hummels limps off ahead of Atletico clash

Bayern Munich suffered an injury scare ahead of their midweek Champions League clash at Atletico Madrid when Germany defender Mats Hummels picked up a knee injury against Hamburg on Saturday.

Hummels was hurt in the first half of Saturday's Bundesliga encounter after landing awkwardly on his right knee having challenged for the ball with Hamburg's US international striker Bobby Wood.

After receiving treatment on the pitch, Hummels finished the first half but sat on the turf early in the second, indicating to the Bayern bench, and was replaced by Jerome Boateng on 51 minutes.

"I had hoped it would get better, but it got worse as the game went on," said Hummels after the final whistle of Bayern's 1-0 victory thanks to Joshua Kimmich's late goal.

"I am assuming I can (play against Atletico), but there are no guarantees."

Atletico host Bayern on Wednesday in Champions League Group D with both sides having won their opening matches. Last season's finalists Atletico beat PSV Eindhoven 1-0 away a fortnight ago while Bayern trounced Russia's Rostov 5-0 in Munich.

Atletico knocked Bayern out in the semi-finals of the Champions League last season.