If Liverpool beats Man U, their end schedule is nearly as soft as West Ham.
If Liverpool (69 points) and West Ham (67 points) run the table then Leicester needs to win 2 of the tough games and keep the goal differential up.
Even if Liverpool lose to Man U, and run the Table that is 66 points and maybe run the goal differential up and Leicester goes 1 - 2, they have 66 points but lose on goal differential to Liverpool. They would need a West Ham tie and that would put them West Ham at 65.
What is the tie breaker in Premier League? Bundesliga is goal differential and 3 teams battling for 2 spots there.