Ireland centres Brian O'Driscoll and Gordon D'Arcy have been included in a preliminary 33-strong squad for the RBS 6 Nations clash with England on Sunday week.
The Leinster duo sat out Saturdays 40-13 victory over Scotland after sustaining hamstring injuries during Irelands championship opener against Italy.
Both players featured in the initial line-up for the trip to Murrayfield but were withdrawn from the side when they failed to recover in time.
Their rehabilitation has continued this week at a specialist cryotherapy centre in Spala, Poland, and their injuries will be assessed once again on Sunday.
Ireland coach Eddie OSullivan has added nine other players to the 22 used against Scotland as his side prepare for the next match in their Grand Slam bid.
OSullivan will name his side to face England on Wednesday, with lock Paul OConnell retaining the leadership duties should ODriscoll remain in the treatment room.
Ireland squad to play England in RBS 6 Nations Championship in Dublin on Sunday, February 27:
G Murphy (Leicester), S Horgan (Leinster), B ODriscoll (Leinster, capt), G DArcy (Leinster), D Hickie (Leinster), R OGara (Munster), P Stringer (Munster) T Bowe (Ulster), K Campbell (Ulster), A Horgan (Munster), S Payne (Munster), R Corrigan (Leinster), S Byrne (Leinster), J Hayes (Munster), M OKelly (Leinster), P OConnell (Munster), S Easterby (Llanelli), J OConnor (Wasps), A Foley (Munster) S Best (Ulster), B Jackman (Connacht), A Quinlan (Munster), D Leamy (Munster), G Longwell (Ulster).