I thought he was very poor throughout first half. Clearly, this was down to our lack of possession (and also due to lack of support from Dembele), rather than just the natural gap in quality vs. Shelvey.
2nd half he did fine and as well as we could hope for, lots of balls won too as I recall it.
I think Sherwood adjusted at half time too and told him to play deeper to eliminate space between himself and the back line. I thought he played much deeper in the second half while Dembele pushed further forward. Thus, he ended up with eight successful tackles in the second half.