I watch Sissoko week after week and still can't answer the question what actually does he contribute to our play.
He's not a creative player - 3 from 4 of his passes are simple, back or straight ones at best.
He's defenitely the worst shooter among our outfield players.
Yes, he sometimes successfully dribbles and moves with the ball for 30-40m passing 1-2 opposition players, but again, then he usually slows down and makes a simple pass or fails with an attempt of a through ball.
He doesn't do a lot for our defensive work as he's limited with tackling and pressing skills.
He's just overall very limited and average. Months pass, games are being lost, but nothing really improves in his displays.