Cancel everything at midday tomorrow. It's the big grudge match as Manchester United meet Manchester City at Old Trafford.

If (and let's face it history is on their side) United win, then they put even more clear water between themselves and the chasing pack.

But form means nothing when it comes to a derby and this season things are getting very tight between the North West neighbours. Carlos Tevez returns to his old stomping ground and it would be difficult to bet against him getting on the score sheet.

Let's not forget, Manchester City will have support from Arsenal, Chelsea and Spurs, because 3 points lost by United will suddenly make the title wide open again.

Today City legend Gary Owen casts his eye over the tie and you can probably predict which way he's going.