Craig Casey has been released back to Munster for Friday's clash with Connacht - after making his Ireland debut in last weekend's victory over Italy.
Casey, 21, starred for the province in the last Six Nations down weekend and impressed off the bench in Rome last Saturday.
His fellow Test debutant, Ryan Baird, has not been released back to Leinster and is included in a 23-man squad for a two-day Ireland camp from Thursday to begin preparations for the next championship encounter away to Scotland on Sunday, March 14.
Casey is among 13 players released for this weekend's interpros after the squad was released after returning from Rome on Saturday night.
Four players picked up knocks in the 48-10 victory over the Azzurri, and Jordan Larmour (hip), Tadgh Furlong (ankle), Dave Kilcoyne (HIA) and Ronan Kelleher (ankle) will have continued their recovery under the supervision of the national medical team and will be further assessed later in the week.
Ireland Two Day Camp Squad from Thursday
Johnny Sexton, James Ryan, Tadhg Furlong, Cian Healy, Garry Ringrose, Robbie Henshaw, Jordan Larmour, Will Connors, Andrew Porter, James Lowe, Ronan Kelleher, Jack Conan, Ryan Baird, Hugo Keenan, Jamison Gibson Park (all Leinster), Conor Murray, CJ Stander, Tadhg Beirne, Keith Earls, Dave Kilcoyne (all Munster), Iain Henderson, Billy Burns, Rob Herring (all Ulster).
Returning to Provinces
Bundee Aki, Ultan Dillane, Dave Heffernan (all Connacht), Andrew Conway, Craig Casey, Chris Farrell, Shane Daly (all Munster), Ed Byrne, Ross Byrne, Rhys Ruddock, Josh van der Flier (all Leinster), Tom O'Toole, Stuart McCloskey (Ulster).
