Jose Mourinho gave some indication of his starting lineup against Hull, in his post match interview after the 4-0 win against Jaap Stam's Reading.
He said: "Today I played with fresh players, the players that didn't play against West Ham. And the next match against Hull I'm going to play again with fresh players so it's easy to know our team - it's Zlatan, it's Pogba, it's Herrera, it's Valencia, the guys who didn't play today."
Hull will be no rollover, with their new appointment Marco Silva but Mourinho will have one eye on the tough premier league fixture against Liverpool following the Hull game.
Here's how Man United are set to Lineup against Hull...
- de Gea1
David de Gea is set to come back into the Manchester United lineup, as Sergio Romero started in the FA Cup Third Round win against Reading.
Marcos Rojo came off injured in the 18th minute against Reading and Mourinho has stated he doesn't know if he will make it for the Hull tie. His replacement on the day Phil Jones is set to come in alongside Chris Smalling, as the pair are the only two available centre-backs, with Eric Bailly away at the African Cup of Nations.
As Mourinho stated in his post match interview, Valencia will come back into the side at right back, the position he has occupied for most the season.
Luke Shaw will be looking to be involved for the first time since November, but it is doubtful he will start.
Since Micheal Carrick came back into the Man United midfield this season, they club have seen a turn around in fortunes, as they are currently on an eight match winning streak. Carrick is a key part of the midfield, and won't be dropped for the semi-final tie.
The two summer signings Pogba and Mkhitaryan look set to come back in the side after being rested on the weekend, with Rooney most likely dropping to the bench after equalling Sir Bobby Charlton's goalscoring record.
Martial may keep his place in the lineup due to his recent impressive form, but Mourinho has many options in the position with Rashford, Mata and Lingard all pushing for a start.
Zlatan Ibrahimovic will start the match against Hull, after the 35-year-old was rested against Reading in the FA Cup. The former Sweden captain will be as eager as anyone to add to his silverware in England.
The Hull defence will have a tough day up against Ibrahimovic, as he will look to capitalise on what has been a weak Hull defence this season, conceding 45 Premier League goals already.