Lol, most people are expect Liverpool will win even though it's played on Manchester United ground, but I've predict this won't going to be easy and then Manchester United prove it. Draw is already an achievement for Manchester United, if they lose, it's nothing surprising.
As for Chelsea vs Sheffield United, Sheffield United is lucky to score one more goal during injury time, Chelsea always have a problem in their back line, just take a look with their previous matches, regardless what the outcome, the opponents can scored a goal.
Manchester United turned into a club with a fairly tough performance when they faced big teams, but it was like Chelsea, Manchester United was also very difficult to win against weak teams so far, Liverpool's defeat in the FA Cup was actually the reason if Manchester United would not be easy to beat by Liverpool, let alone they played at Old Trafford, Although they led by one goal until the first half, but Liverpool failed to maintain the victory and luckily for Liverpool got a penalty to level the end score to 2-2, the one point Liverpool got today was actually quite detrimental to them because they had to drop to second place and hand over the top of the table to Arsenal, but fortunately they were still on the path of champions to compete because they only had a difference 1 point from Arsenal.
Winning against Manchester United in the previous game, I think Chelsea have come out of their poor form, but in fact they still cannot be expected, the draw to the relegation team is of course very embarrassing for a team of Chelsea's class, and when you say Sheffield United is lucky, of course you are wrong in my opinion, because after all the last goal from Sheffield United was the result of hard and unyielding work from Sheffield United who continued Pressing Chelsea even though they were previously underestimated to be able to get points in the game.