The Germany centre-back, who has been a regular fixture for Julian Nagelsmann’s side this term amid their latest Bundesliga title challenge, will be out for an unidentified period.
Reports in Germany suggest the 26-year-old, who has agreed to join Borussia Dortmund on a free transfer at the end of his contract, will miss around three to four weeks of action.
”Niklas Sule tore a muscle in his right rear thigh during training on Wednesday,” read an official club statement.
”The 26-year-old FC Bayern centre-back is now facing a spell on the sidelines.”
Sule joins Alphonso Davies on the injury list at Allianz Arena, though the latter returned to training earlier this week following his myocarditis diagnosis in January.
Bayern will play Union Berlin on Saturday in their final game before the March international break, while they will discover their Champions League quarter-final opponents on Friday.