Tadhg Furlong, Jamison Gibson-Park and Robbie Henshaw have been included in Ireland's training squad for this week, while Finlay Bealham has been ruled out for the rest of the Guinness Six Nations.
Bealham, who had started all of Ireland’s matches this year, twisted his knee in the first half of Saturday’s 34-20 victory over Italy.
None of prop Furlong, scrum-half Gibson-Park or centre Henshaw have played in the tournament so far and their return for the two-day camp is a welcome boost for boss Andy Farrell.
Captain Johnny Sexton (groin) and Garry Ringrose (calf) have also been named in the 27-man squad that will host an open session in the Aviva Stadium on Thursday.
Both Leinster men missed the clash against Italy.
Ireland, who top the table, play Scotland on 12 March in Murrayfield.
A number of players have been released to their provinces with a full round of BTK United Rugby Championship fixtures over the weekend.
Ireland training squad
Bundee Aki (Connacht/Galwegians) 44 caps
Ryan Baird (Leinster/Dublin University) 9 caps
Ross Byrne (Leinster/UCD) 17 caps
Craig Casey (Munster/Shannon) 10 caps
Jack Conan (Leinster/Old Belvedere) 36 caps
Tadhg Furlong (Leinster/Clontarf) 63 caps
Caelan Doris (Leinster/St Mary's College) 26 caps
Jamison Gibson Park (Leinster) 23 caps
Mack Hansen (Connacht/Corinthians) 12 caps
Cian Healy (Leinster/Clontarf) 121 caps
Robbie Henshaw (Leinster/Buccaneers) 61 caps
Iain Henderson (Ulster/Academy) 71 caps
Hugo Keenan (Leinster/UCD) 28 caps
Ronan Kelleher (Leinster/Lansdowne) 20 caps
Dave Kilcoyne (Munster/UL Bohemians) 51 caps
James Lowe (Leinster) 18 caps
Stuart McCloskey (Ulster/Bangor) 12 caps
Conor Murray (Munster/Garryowen) 103 caps
Jimmy O’Brien (Leinster/Naas) 4 caps
Peter O’Mahony (Munster/Cork Constitution) 92 caps
Tom O’Toole (Ulster/Ballynahinch) 7 caps
Andrew Porter (Leinster/UCD) 51 caps
Garry Ringrose (Leinster/UCD) 49 caps
James Ryan (Leinster/UCD) 51 caps
Johnny Sexton (Leinster/St Mary’s College) 111 caps (c)
Dan Sheehan (Leinster/Lansdowne) 15 caps
Josh van der Flier (Leinster/UCD) 48 caps
Watch highlights of all the weekend's action on Against the Head, RTÉ2 and RTÉ Player, Monday, 8pm
