Leyton Orient will be without captain Stephen Dawson for the FA Cup replay against derby rivals Dagenham.
Dawson was the victim of a nasty challenge which earned Carl Regan a red card during Saturday's 3-0 win at Bristol Rovers and left the ground on crutches.
The midfielder will undergo a scan on his ankle to determine the extent of the damage but he has already been ruled out of the Daggers clash.
Defender Andrew Whing, who replaced Dawson at the weekend, is ineligible under the terms of his loan from Brighton.
Lee Butcher continues in goal with Jamie Jones out for a month to recover from a hernia operation, and midfielder Adam Chambers has undergone surgery on his calves.