Reid sustained an ankle injury in last week's defeat at Notts County and was replaced early in the second half by Niall Canavan.
Canavan will return to the starting line-up alongside David Mirfin in central defence if Reid fails to make it.
Fellow defender Eddie Nolan took a knock to the back at County, but is also expected to start, while Christian Ribeiro could return to the squad following a hamstring injury.
Boss Brian Laws must decide whether to continue with teenager Anthony Forde, who made his debut in midfield last week following his arrival on loan from Wolves while striker Akpo Sodje shook off a foot problem to start and is likely to resume his partnership up front with Karl Hawley.
The Iron, who have lost their last three league games and five of their previous six, are aiming to climb out of the relegation zone with victory.
- Sports & Recreation
- Christian Ribeiro
- David Mirfin