With last 7 games they have earned 8 points. So roughly point per game.
If we win all 3, we'd end up with 71.
If they earn point per game, they end up with 70 points.
Only issue is - their last game is home against relegated Watford. So that is 3 points guraranteed.
If the draw against Leeds, lose to Leicester and even somehow lose to Watford, they would still edge us out with GD (currently +39 vs our +20).
So only option is if they lose both - Leeds and Leicester.
That seems very-very unlikely, just next to impossible.