You probably wouldn;t notice him because he won't do anything fancy but his positioning is excellent. We've been far more solid defensively once Kolo came off, with him and Rossiter protecting them.
Lallana with the ball on the edge of the box. Just grab him and throw him down. You've paid for the ref so you might as well use him.
Not sure the defence can be blamed for that. The twat was juggling it above waist height. Couldn't get close.