#1 Will Sanchez finally turn up?
We've been asking ourselves the same question before almost every United match. First of all, should he even start the match? Sánchez has cut a frustrated figure at Manchester United, having scored only a single goal - a rebound from his own missed penalty.
What is more frustrating for Manchester United fans is that his arrival has effected a change in Anthony Martial's form as well. After turning in a string of impressive performances, Martial was displaced from his favoured left wing position upon the Chilean's arrival and has since flattered to deceive.
The focus here is on Sánchez, however, who would have been expected to fit in well into the United attack but has failed to do so, giving Mourinho a selection headache ahead of the crucial match.
Since moving to United, Sánchez has been dispossessed on an average of 4.4 times per game.
The next worst is Martial at 1.8. In the first half of the game against Crystal Palace alone, Sánchez was dispossessed a staggering 19 times. This has been hampering the forward momentum created by United and he needs to be more careful with the ball at his feet.
Yes, he hasn't settled in well enough at United. Yes, he hasn't shouldered responsibility when the team has looked out of sorts. And yes, he might be in poor form, given the standards he has set for himself.
Nevertheless, the fact remains that Alexis Alejandro Sánchez Sánchez is a world-class player, and on his day, can single-handedly win you any game. Hence, it is well worth the risk to start him in such a big game. He did, after all, score against Liverpool earlier this season with Arsenal.