You should. His 'defending' in the minute that let up to Chelsea scoring is hilarious.
http://www.footballorgin.com/epl-chelsea-vs-manchester-united-full-match-replay/3/
18:30. Misreads the flight of the cross and then slips, giving Hazard a free shot from the penalty spot.
19:00. Ball falls to him in the box. Simple pass to Matic is available. Instead he boots it straight into the air so Chelsea regain the ball in our half and keep the pressure on.
19:30. Positions himself in no mans land for no reason so Smalling is left 2v1 and Chelsea score.
Worth noting that he received virtually no blame for this goal. Smalling was criticised a lot (as is usually the case when he is unable to cover for the clownish play of our other defenders).