For liverpool to have escape from arsenal the previous Day I don't consider burnley being a threat to them I'm not underestimating them but that's just the real fact.
It's clear that you still don't understand how these things work. It's not even going to come like a shocker that Liverpool ends up losing against burnley, afterall that's not going to break some first-hand record. Infact, if I'm to bet on that game, I'll go burnley to win with a 2-goal head start.
If not I don't see anything that would stop liverpool from securing this 3 points, surely Burley is indeed a nuisance for manchester united the previous Day and that is because manchester united gave them the opportunity to do so.
Like I said earlier, it's clear that you have no idea on how to make predictions on football games.. Even if Liverpool is the favourite in this game, chances are that anything can happen.
As for Manchester united, they should be the one dominating the league having known that they have fewer matches to play after failing to qualify for any European competitions last season.