Leyton Orient are sweating over the injuries to defenders Mathieu Baudry and Elliot Omozusi.
Baudry only returned to the side for Monday's win over Bury after missing three games with a hip problem but lasted just 12 minutes, while his replacement Omozusi limped off in the second half.
With regular centre-half Scott Cuthbert recently ruled out for the season with a metatarsal injury, boss Russell Slade could be left short at the back for the run-in.
"Mat Baudry looks like a recurrence of the hip injury while Elliot Omozusi looked a touch more serious, so we'll have to wait and see on that one," he said.
"It's not ideal but our job remains the same, we need to get as many points as we can."