Bayern Munich full-back Sacha Boey is facing several weeks on the sidelines with a hamstring injury.

Tests have revealed the 23-year-old Frenchman, who joined the club from Galatasaray last month, suffered “a large tear” in his left hamstring during training.

A statement on the club’s official website read: “FC Bayern will be without Sacha Boey for the coming weeks after the 23-year-old January arrival suffered a large tear in his left hamstring in training.

“This is the result of examination by the FC Bayern medical department.”

Boey started last Saturday’s 3-0 Bundesliga defeat at Bayer Leverkusen – his second appearance for the club – but was an unused substitute as the German champions went down 1-0 at Lazio in the Champions League on Wednesday evening.

The news represents a fresh blow for Bayern boss Thomas Tuchel, who headed for Rome under intense pressure after the defeat by Leverkusen left his side five points adrift of the leaders.

Tuchel’s men head for Bochum on Sunday, host fifth-placed RB Leipzig and travel to Freiburg in the league before the second leg of their last 16 clash with Lazio on March 5.