Watch Ireland v Scotland live on RTÉ TWO from 1.00pm this Saturday after live coverage of Wales v Italy.
Paul O'Connell will start Ireland's crunch RBS 6 Nations Championship clash with Scotland after passing a fitness test today.
Ireland boss Eddie O'Sullivan delayed naming his second row for the Lansdowne Road encounter in order to give O'Connell every chance to recover from his shoulder injury.
The Lions lock, an inspirational figure for the Irish, suffered an AC joint separation against France nearly four weeks ago and missed the 31-5 demolition of Wales.
He was withdrawn early from training on Tuesday as a precautionary measure and was given the all clear by Ireland's medical team earlier today.
Donncha O'Callaghan has paid the price for his Munster team-mate's return and must settle for a place on the bench for the clash with Frank Hadden's side.
O'Sullivan faced a tough call in deciding who to drop out of O'Callaghan and Malcolm O'Kelly given the duo's performances against Wales, but the Leinster veteran has been given the nod.
Mick O'Driscoll, who featured on the bench against last season's Grand Slam champions, drops out of the squad altogether.
Victory in Dublin on Saturday would set up a potential Grand Slam decider against England eight days later, while Scotland need a win to keep their title hopes alive.
O'Connell was Ireland's player of the Six Nations until injury ruled him out against Wales and his presence is vital if the rejuvenated Scots are to be beaten.
Ireland team to face Scotland:
G Murphy (Leicester); S Horgan (Leinster), B O'Driscoll (Leinster, captain), G D'Arcy (Leinster), A Trimble (Ulster); R O'Gara (Munster), P Stringer (Munster); M Horan (Munster), J Flannery (Munster), J Hayes (Munster), M O'Kelly (Leinster), P O'Connell (Munster), S Easterby (Llanelli), D Wallace (Munster), D Leamy (Munster).
Replacements: R Best (Ulster), S Best (Ulster), D O'Callaghan (Munster), M O'Driscoll (Munster), E Reddan (Wasps), D Humphreys (Ulster), G Dempsey (Leinster).
