Key man on the list for some will be Alexis Sanchez who tore a calf muscle whilst on international duty with Chile, but frankly I'm more concerned about the continued absense of Santi Cazorla.
It's being reported today that Sanchez' injury isn't as bad a first feared, but it'll still be a miracle if he's in any fit state to play in Manchester.
Hector Bellerin has an ankle injury which we're told will keep him out of action for a few weeks.
Also injured are Lucas Perez, Kieran Gibbs, and of course long-term absentees Danny Welbeck and Per Mertesacker.
Never mind the others though - it's Cazorla we need back, and quick. We simply haven't played as well in the games he's missed this season. His ability to create chances and quickly link the play between defence and attack is essential. We're not as strong without him, and his fitness must be a priority.
