Bayern Munich defender Alphonso Davies has stopped training after the club detected signs of heart muscle inflammation.
The Canadian, 21, has not played since December 17 after contracting Covid-19.
Bayern boss Julian Nagelsmann says a mild sign of myocarditis was discovered after Davies returned to training.
“During our follow-up exam that we do with every player who has had Covid-19, we detected signs of mild myocarditis,” Nagelsmann said.
“He has stopped training for the time being, so he will not be available for us in the next few weeks.”
Myocarditis is inflammation of the heart muscle that can reduce the heart’s ability to pump blood and can cause rapid or irregular heartbeats.
Davies has made 107 appearances for Bayern since signing from Vancouver Whitecaps in 2018, helping them win three Bundesliga titles and the Champions League in 2020.
“This myocarditis isn’t too dramatic on the ultrasound, but more just signs of inflammation. Still, it needs to heal and that will probably take some time,” Nagelsmann said.
On January 5, Bayern said Davies was doing “well” after testing positive for Covid.
Nine Bayern players tested positive in early January after an absence following the Bundesliga’s winter break.