From wiki he played 140 games for us. 15% is 21 - I think 21 games where he wasn’t garbage is a fair possibly generous assessment.Sissoko played a HUGE part in our getting to the CL final and top 4 in 19/20.
Garbage 85% of the time is pure fiction. The way he was treated by our supporters in his first season for us was embarrassing and each one of them should be thankful he is a model professional and was committed to proving them all wrong.
His contribution wasn’t huge to the CL run, he definitely played his part and he definitely made a difference when he came on against Ajax in the first leg and in the second leg his elevated punt was crucial.
People had made up their minds before he played for us for sure but he did nothing to challenge the perception. He was a massive flop. 30mill and offered so little. Do you remember that he couldn’t score, a few bursts of pace and then a pass backwards or to the opposition. Rose tinted spectacles.