They're literally going down having lost 18 matches so far this season. That's exactly half of all the games they've played they've lost.
Don't think you need to be Real Madrid to expect a win there. When you factor in the context and significance of the game, as well as Moyes' inability to take points off the top sides over the course of a season - Yes, that's absolutely a game we have to win.
oh wait we should of had a pen
and an conceded in injury
yep its all moyes