Here, our Blades writer James Shield picks out what he believes will be the line-up at the Madejski Stadium
5. George Baldock
George Baldock is yet to play in the FA Cup either, but he has made 27 league appearances so far Photo: Simon Bellis
6. Ben Osborn
Ben Osborn impressed in covering for the injured Enda Stevens Photo: Robin Parker
7. Oliver Norwood
Ollie Norwood scored at The Den to seal United's fifth-round spot Photo: Robin Parker
8. John Fleck
John Fleck is another who has yet to appear in the FA Cup this season Photo: Simon Bellis