Walsall wait on Bradshaw
Walsall will assess top scorer Tom Bradshaw for the Peterborough clash after he suffered a hamstring injury during the week.
The nine-goal striker was withdrawn at half-time of the 1-0 Johnstone's Paint Trophy win over Sheffield United on Wednesday.
Mathieu Manset replaced him and the former Coventry and Reading hitman stands by to deputise.
Walsall boss Dean Smith said: "Tom's a doubt, he's had a scan and we are waiting for results on that. I don't want to push him until we've had the results."
Peterborough will have full-back Kgosi Ntlhe available again after a seven-week absence with groin and hamstring problems.
Kyle Vassell successfully came through his return from a similar lay-off in last week's FA Cup win over Carlisle and has trained well this week, according to boss Darren Ferguson.
The Posh boss has lost the services of loan signing Kenny McEvoy, though, after the winger was recalled by Tottenham.
Marcus Maddison is making progress with his injury but is not yet ready and Jack Baldwin remains on the sidelines, too.
Source: PA
