Agree with this, we don't need him.
Just not agree with some here that say he is a bad player.
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If you look back at the images, you will see that Witsel comes in from above, with the studs down, direction leg of Wasyl, clearly no intention to play the ball.
https://www.youtube.com/watch?v=ANm73qFy6i8
From second 40 onwards makes that very clear.