Form guide: United's last Barclays Premier League defeat was way back in mid-November - against Norwich. The Reds' only home loss domestically was to Tottenham in September and the remarkable run has allowed Sir Alex's side to claim a 12-point lead at the top of the table. Norwich's form had been poor before last weekend's dramatic 2-1 win over Everton. A run of six games without a victory included a shock FA Cup exit at the hands of non-league Luton Town and the previous league triumph had been on 15 November (against Wigan).
Betting: bwin have United as 3/10 favourites to win at the weekend with the draw priced 17/4 and Norwich 8/1 outsiders. Javier Hernandez and Danny Welbeck are both 9/2 to score the first goal and 11/10 to net at any time with a 1-0 success rated a 13/2 chance. Click here for more odds.
Ins and outs: There is widespread expectation that Sir Alex will shuffle his pack with Real Madrid on Tuesday in mind but it's highly unlikely he will field two separate sides. Wayne Rooney proved his fitness by coming on as a substitute at QPR but Robin van Persie picked up a painful knock to his hip at Loftus Road. Paul Scholes has been sidelined with a knee problem although the manager has an embarrassment of riches available. Kei Kamara could start after his matchwinning impact off the bench last Saturday while Andrew Surman and Alexander Tettey will hope to return from injury. Keeper John Ruddy remains out so Declan Rudd deputises.