Frazer Richardson and Richard Chaplow are both back in training, but face a race against time to be fit.
Walsall manager Chris Hutchings told BBC WM: "They have Championship standard players, that makes a huge difference and I'm sure it makes a huge difference to their wage bill as well.
"You've got to work hard against them, they'll give you nothing, that's for sure. But everybody knows anyone can beat anyone on their day.
"It's a matter of doing it week-in, week-out and we've got to find that little bit of consistency. The last three league games we've won two and lost one, that should give us confidence."
Source: BBC Sport
Source: BBC Sport