Brighton duo Matt Sparrow and Adam El-Abd have been passed fit for the trip to Peterborough.
Midfielder Sparrow missed last Saturday's win over Yeovil with a groin problem but has trained this week.
Centre-half El-Abd suffered a broken nose against the Glovers but was back in training just two days later and should reclaim his place in the starting line-up.
Manager Gus Poyet therefore has a virtually full-strength squad for the table-topping clash with midfielder Alan Navarro the only absentee.
Navarro is continuing his rehabilitation from a ruptured cruciate ligament and has targeted a return in February.
The Seagulls are six points clear at the top of the table on the back of a 10-game unbeaten run.