Van Nistelrooy will be in visiting damage tomorrow and, as Amorim, will need a victory after a difficult results.
The East Midlands Club has only won one of its last 10 league games and a cup run would offer a welcome break.
The Dutchman is looking forward to returning to Old Trafford.
“It is something special to return there,” he said. “I have history as a player, as an assistant as a caretaker.”
Manchester United against Leicester Team News
United will be without Lisandro Martinez and Luke Shaw.
Martinez suffered an ACL injury to the palace, while Shaw suffered a slight setback after a series of lettling injuries.
January Signing Patrick Dorgu and Ayden Heaven are both available.
Wilfred Ndidi was declared fit for Leicester, while Van Nistelrooy confirmed that 15-year-old Jeremy Monga and 17-year-old Jake Evans will be part of the squad.
Manchester United against Leicester expected lists
Manchester United: Onana; Yoro, Maguire, from Ligt, Dalot, Dorgu; Fernandes, Mainoo; Diallo, Garnacho, Hojlund
Leicester City: Hermansen; Coulibaly, Faes, Vestergaard, Kristianen; Winks, soumare, ndidi; Ayew, de Cordova-Reid, Vardy
How to see Manchester United against Leicester City: Live Stream, TV channel
The game is shown live on terrestrial television. ITV will examine it in Great Britain from 7.30 p.m. The game starts at 8 p.m.
Manchester United against Leicester City – the statistics
- Manchester United won Your last 5 Home games in a row in the FA Cup and scored more than 2.5 goals
- Manchester United won 11 of their last 13 Games in the FA Cup and scored more than 1.5 goals
- The last team that defeated Manchester United in a FA Cup auscase in Old Trafford in the normal time was arsenal in 2015
- In 3 of the last 4 Manchester United Matches in the FA Cup, the total number of the gates was over 6.5
- Leicester won the last FA Cup meeting between the pages in 2021
- Leicester has lost 7 of their last 8 Matches and scored less than 1.5 goals
- Leicester has lost Your last 5 Away games in a row and scored less than 1.5 goals
