David Alaba in 'very severe pain' as Bayern Munich fear lengthy injury

Alaba, who has been in superb form this season when fit, suffered the injury when Bosnia and Herzegovina player Ermin Bicakcic landed on his left knee.

The 22-year-old was substituted at half-time of the international friendly and it is feared he has suffered a medial ligament tear or, worse, a torn cruciate ligament.

“I’m in very, very severe pain,” Alaba said. “I can barely walk. I do not really know what’s going on.”

Alaba, who has performed a number of roles for Bayern this season, always with distinction, will be examined “in more detail” by Bayern club doctor Hans-Wilhelm Mueller-Wolfhart on Wednesday, the club have confirmed.

Austria coach Marcel Koller said: “David has problems with his left knee. He felt a pang. He is not so good.”

Alaba suffered a knee ligament injury in November in the Champions League against Roma and only returned on January 30.