The Bees come into this replay without two-goal hero from the weekend John Bostock, who has joined up with the England under-19 squad. Defender James Wilson is also on international duty, with Wales' under-21 squad, so misses the game.
Gateshead welcome back captain Chris Swailes, who was suspended for the first game, and come to Griffin Park on the back of a 5-3 loss to Stevenage Borough. Loanees Andy Haworth and Michael Mackay are both cup-tied.
Orient pair Luke Summerfield and Andros Townsend are both cup-tied, Adam Chambers is expected to continue his first team comeback by deputising in central midfield. Also on the comeback trail is Tamika Mkandawire who hopes to be fit after sitting out the last three games with a head injury.
Managerless Tranmere's Shaleum Logan and Charlie Barnett return after three-match bans while Gareth Edds and Alan Mahon return but John Welsh (suspension) misses out.
Both sides will be without their captains, Morecambe's Jim Bentley picked up a calf injury at the weekend and Carlisle's Paul Thirlwell remains on the sidelines, although he nears a return.
Shrimps midfielder Stewart Drummond is suspended while Marc Bridge-Wilkinson (knee) faces a late fitness test for the Brunton Park outfit and David Raven is still nursing a hip injury.
Mansfield are hoping that Lee Briscoe will be fit to return to their starting line-up today but the Stags have no other fresh worries ahead of their FA Cup replay.
Rovers, on the other hand, are without cup-tied Craig Rocastle as well as Lee Ayres (groin) and Jeffrey Imudia (knee). Oliver Thorne (ankle) and Andy Taylor (hernia) are doubtful but striker Tomi Ameobi hopes to make himself available.
Stevenage manager Graham Westley is likely to make changes to his side after their 5-2 win over Gateshead at the weekend. One enforced change will be Eddie Anaclet coming in for Ronnie Henry while Chris Beardsley and Joel Byrom are in contention to replace Andy Drury and Mitchell Cole.
The Valiants, meanwhile, face a selection crisis. They are still without Gareth Owen (fractured cheekbone) and his replacement, Luke Prosser, is suspended meaning Lee Collins and John McCombe are their only available defenders. Skipper Tommy Fraser also serves a ban but Jason Jarrett is expected to play some part in the game.
- By David Brenchley