Tom Heaton stood in and is a more than capable replacement if Marshall does not make it today.
Rudy Gestede is out with a hamstring injury but hopefully Robert Earnshaw will be amongst the subs after struggling with a tight thigh muscle.
Kenny Miller returned to the starting line up at Derby with Joe Mason dropping to the bench. Mason had stated and scored in the two previous games. Will Malky try to find a place in the side for both players at home today?
Palace come to Cardiff on a run of eight games unbeaten. The last six of those without conceding a goal. They have threats from the experienced Darren Ambrose and Welsh striker Jermaine Easter.
Mile Jedinak should return to the Crystal Palace squad.
The Australia midfielder was rested for Tuesday night's goalless draw against Portsmouth as he became a father the night before.
Winger Sean Scannell and midfielder Jonathan Williams will also be pushing for recalls should boss Dougie Freedman opt to rotate his squad.
However, there will be no changes in defence with Palace having kept an impressive six consecutive clean sheets.
Owen Garvan is fit after a knee injury but has not managed to break into the squad recently, fellow midfielder Alex Marrow is still on the sidelines with an ankle problem and full-back Lee Hills is recovering from a long-term knee injury