Blues defender Baba Rahman is set to miss the rest of the season after suffering a serious injury playing for Ghana.
It was during the African Cup of Nations in Gabon last week that Rahman was stretchered off during the 1-0 win over Uganda.
Baba Rahman tore his anterior cruciate ligament in his left knee.
He will require surgery to repair the damage.
Rahman is currently on loan at Schalke from The Blues.
According sources he will now sit out the remainder of the season
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