I must say, it seems a bit mad to talk about a game in week 11 being as "must win", but, if we do beat Sunderland the pressure on both City and Liverpool to win at the weekend will be huge. Conversely, were we to do anything but take the maximum, a win for one of them puts them right back in it just before the international break and then those fixtures against Spurs and Chelsea. Imagine the noise!
So, no, not a "must win" in the strictest sense, but as close to it as makes no difference. We need to keep blocking out the sun for everyone.