Nick Timoney has been selected to start against Argentina, marking his ninth consecutive appearance in a Test match.

Craig Casey is named in the starting XV alongside Timoney and Jansen, having been preferred over Jamison Gibson-Park to begin at nine.

Sam Prendergast returns from a wrist injury to form a half-back partnership with Casey against the South American side.

Nick Timoney's inclusion comes after he struggled to secure regular playing time earlier in the season despite strong performances for his province.

With only one game under his belt this year, Timoney will start on the bench initially before moving into the starting lineup for the match.

The selections of Casey and Timoney were less expected given their limited involvement in recent Ireland squads.

Baird is selected at blind-side flanker, joining Timoney and Jansen in the back row for the Nations Championship encounter.

The 34-year-old missed the start of Leinster's season with a groin injury but made his return in the win over Munster on 24 October.

Seven of those appearances, however, have been from the bench and his start on Friday night comes at the expense of former World Rugby player of the year Van der Flier.

Wing Mack Hansen, prop Andrew Porter and Ryan Baird all start, having not featured for Ireland since the defeat by South Africa in November 2025.

With captain Caelan Doris and two-tour British and Irish Lion Jack Conan missing through injury, Connacht's Jansen always seemed the most likely to fill in at number eight for head coach Andy Farrell.

The 27-year-old made a try-scoring debut for Ireland against Japan in July and followed that with a cameo as a replacement against the All Blacks a week later.

Hansen starts in the number 11 jersey in what is Ireland's first home game since James Lowe's departure from Irish rugby, with Robert Baloucoune keeping his spot on the right wing and Hugo Keenan selected at full-back.

Influential scrum-half Gibson-Park has arguably been Ireland's best performer in recent seasons.

With Garry Ringrose ruled out because of a hamstring problem, the experienced Robbie Henshaw will wear the 13 jersey, forming a midfield partnership with Stuart McCloskey.