The Whites face a tricky third round tie against League Two opposition this weekend. The FA Cup, though, provides an opportunity for Leeds to give a run out to those pushing for starting places at Elland Road.
Tyler Roberts has been ruled out while club captain Liam Cooper and centre-back Diego Llorente are fit an available once again. The latter is unlikely to be risked and a number of United's Under-23s players - such as Joe Gelhardt and Sam Greenwood - may make the bench.
Here is the line-up we think Bielsa may choose against the Red Devils, with a host of changes to come. Crawley Town often opt for a 4-4-2, meaning Leeds would match up with a 3-3-1-3.
1. GK - Casilla
Bielsa often uses the cup competitions to give match minutes to his number two goalkeeper.
2. CB - Cooper
A chance for him to pick up some much needed match minutes on his return from injury.
3. CB - Phillips
May have been afforded the afternoon off but with a suspension incoming minutes are needed to stay sharp. Crawley usually go with two up top, so a slot in defence makes sense.
4. CB - Struijk
A player who has proved hugely useful amidst injuries in the defensive ranks. You'd think this is another chance to prove himself. Will need to stand up to the physical challenge.