Is Mata your new target of hatred.
Just over rated, it's pretty much classic attacking play in the box for any player. Defender ahead, can't see you, waiting for the ball, the attacker come across the front of the defender at the last second and win the ball. It's particularly dangerous when wingers do that for crosses like that, instead he showed like he might try it by running towards the near post, but as the cross was coming in he slowed down. Nothing the crosser can do when as you hit it the player then changes what he's doing.
I always said and thought Mata was over rated, he's the same as Ozil, perfectly nice player, not great under pressure, weak on the ball, hustled off it too easily and basically will show no fight regardless of the game.
It's like the comparison of Arfa/Hazard yesterday, talent + application gives you Hazard, talent and little effort gives you Arfa. Mata/Ozil are much closer to Arfa than Hazard. I'd also point out that after a meh delivery(too low) he's effectively one of the best placed players to get back if Fulham break on them.... he was no where to be seen. Rooney was further forward, in the box and got back to make a crucial, absolutely crucial interception. Mata just stood around like his bit of that play was done.