I wouldn't have a huge issue with his recent performances, I can deal with the missed header or not making more of the half chances he was putting away a couple of months ago. All players suffer a crisis in confidence. But he's definitely lacking in aggression with his movement. Just watch him in the box when we have the ball wide, it's all very passive. When the ball bounces around in the area, and he's not the only one guilty of this, he's never challenging for the second ball.
I don't buy that it's down to his contract or his age, it's just a severe lack of confidence. But he needs to snap out of it.