A class act indeed, but time catches up with the best of them.
I think that in recent games it isn't that he has been playing badly, it's that he hasn't been playing well...if that makes sense.
I think that he has not had the influence on games that he was having previously. He was going nothing wrong but wasn't controlling the game or driving the team forward. To me, he looked like a player making sure that he was not doing anything wrong rather than making sure that everyone else was performing well.
Yes, he did make the first goal against Watfor, but was it a brilliant ball or a hoof forward ?