No chance - if they don't beat Palace they're down. If we lose both our games 5-0 they'd still need to beat United by a 4-goal margin to equal our GD. They're between 1/66 and 1/100 to go down now.
Palace players don't give much of a crap about the rivalry with us - that was obvious from our games against them. Certainly not enough to chuck a game away. Man U look awful at the moment but Ole won't want to be losing to a team that sacked him, at Old Trafford on the last game of the season...