Bayern Munich are awaiting updates after Benjamin Pavard suffered an injury two weeks ahead of the Champions League last-16 second leg against Chelsea.
Pavard reportedly injured his ankle in a training game on Sunday and had to cut the session short to receive treatment.
The scare comes as Bayern step up preparations for their August 8 clash with Frank Lampard's side in Munich, where they will look to defend a 3-0 lead from the first game.
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"Benjamin Pavard sustained an injury," head coach Hansi Flick confirmed in a media conference after training on Sunday.