Bayern Prospect Lennart Karl Begins Rehab After Confirmed Thigh Muscle Tear

The club and player are following a cautious recovery plan targeted at roughly eight weeks to avoid a premature return and aim for fitness by the Aug. 22 Supercup.

Overview

Karl suffered a muscle-fiber tear in the back of his right thigh while training with Germany and was ruled out of the World Cup, a diagnosis confirmed by Bayern’s medical team.
He has returned to Bayern’s Säbener Straße training base and started controlled rehabilitation indoors with cycling and gentle jogging under daily medical supervision.
German media report an approximate eight-week recovery window that makes Karl unlikely to join Bayern’s preseason training, though the club will assess progress day by day.
Karl has said he will not rush his comeback and is prioritizing a full recovery rather than returning early and risking reinjury.
The setback interrupts a breakthrough 2025–26 season in which Karl scored nine goals and supplied seven assists, and it has prompted Bayern to manage his rehab carefully while reviewing youth muscle-injury patterns.