Centre-back William Gallas has not played a game all season, and the calf injury which has sidelined him keeps him from playing his old side this weekend.
Arsenal have their own injury problems, mind. Jack Wilshere's ankle surgery has ruled him out until the New Year, while Laurent Koscielny, Theo Walcott and Gervinho are all doubtful with various ailments.
Both sides in the weekend's other big derby - Everton v Liverpool - have reasonably clean bills of health. Everton have worries over the state of Tim Cahill's shin following the injury that forced him out of last weekend's defeat at Manchester City, but otherwise it's pretty much as you were for the Toffees.
Wayne Rooney and Nemanja Vidic are the biggest names on the absentee list for Manchester United ahead of their game against Norwich.
Newcastle have received a big boost with the news that Italian defender Davide Santon has avoided major knee surgery and could even make his debut for the Magpies this weekend away to Wolves.
Emile Heskey and Darren Bent could both return for Villa in time for the visit of Wigan.
And, finally, it says here that Carlos Tevez is suspended for Manchester City's trip to Bolton. Funny, don't remember him even coming on against Everton last weekend, let alone picking up a card...