The 26-year-old No. 1 had previously complained of discomfort earlier in the week and was absent during Friday’s training session after going to hospital for scans, which revealed that the initial fears that he had torn his cruciate ligament were unsubstantiated. While the injury isn't as serious as first feared, the club confirmed that Fährmann will miss the start of the second half of the season. Jan Kirchhoff will join up with the squad at The Aspire Academy for Sports Excellence on Saturday. The FC Bayern München loanee had initially remained in Gelsenkirchen due to his on-going tendon issues, but has now been given the all clear to travel to Qatar.