David de Gea 6
By his own ludicrously high standards, might have saved either goal, but neither would have been expected of him, and he thus did nothing particularly wrong.
Chris Smalling 5
Was reasonably good defensively, but as usual offered nothing going forward and was once again less than commanding on set-pieces.
Rio Ferdinand 7
Produced a good series of blocks and tackles to deny Cardiff several chances, notably through Whittingham and Kim. Only real mistake made in the game was a strange touch down into the area rather than a clearance, but nothing came of it. Solid.
Jonny Evans 4
Outpaced by Fraizer Campbell for the goal, but also ill-positioned to allow the striker to make the run in the first place. Also less confident than usual on the ball. Not a great display.
Patrice Evra 6
A mixed bag - scored a goal at a crucial time, but was partly responsible for the equaliser, and failed to offer the usual drive going forward, which United have been hugely reliant on in recent years.
Marouane Fellaini 6
Vastly improved United's danger at set-pieces and did nothing wrong all game. Major criticism was his odd positioning, starting extremely deep then charging up to press - thus arriving too late to put pressure on anyone and leaving a gap behind him. Hard to know whether to blame the player or the system, but didn't make any tangible mistakes and improved United's stickiness up front when moving further forward in the second half.
Tom Cleverley 2
Guileless, classless, heartless, gutless, pointless. Completely anonymous from start to finish, failing to provide any penetration in attack, showing his usual inability to tackle, and continuing his claim to be have the worst positional sense in the Premier League. Also reproduced some of the world's worst finishing after one attempt from a corner, completely at odds with his goalscoring days at Watford. Never good enough, never will be good enough. Get Sunderland on the phone.
Antonio Valencia 3
A big involvement for the opening goal, although that owed more to a poor pass from Marshall than any superhuman capabilities of interception from the winger. Other than that, lost the ball constantly and generally huffed about to absolutely no effect.
Wayne Rooney 4
An extremely mixed bag. Scored a fluke to open the scoring, after being very fortunate to avoid a red card. Some fine deliveries from corners masked an otherwise awful performance, creating absolutely nothing and missing a golden chance to snatch a late winner with an utterly pathetic pass to Welbeck.
Adnan Januzaj 4
Extremely energetic, but was badly off the boil today. Certainly tried a lot, which is something, but constantly dribbled into defenders and thus had no real effect on the game. Was playing too deep most of the time, although he's usually made up for that by taking people on. Today, he couldn't, and a few feisty challenges weren't enough to prevent it probably being his worst performance in a United shirt.
Javier Hernandez 5
Didn't look as dangerous as he might, but a nice flick for the opening goal, and was generally starved of service.