Connacht's Mack Hansen has been called up to the Ireland squad ahead of Saturday’s clash with Japan at the Aviva Stadium (1pm, live on RTÉ2 and RTÉ Player).

The Australian-born winger, who qualifies for Ireland via his Cork-born mother, has impressed for his province in the United Rugby Championship, where he topped the defenders beaten (25) and metres made (321) after five rounds.

The 23-year-old former Brumbies man has scored four tries in five appearances for the Westerners.

Head coach Andy Farrell has no new injury worries from the 38-man squad originally named, however, centre Robbie Henshaw continues rehabilitation on a foot injury in camp.

A bulletin issued at lunchtime today did not rule the Leinster and Lions back out of contention for the opening game of the Autumn Nations series but the 28-year-old, who started all three Lions' Tests against South Africa, is not likely to be rushed back into action.

Munster lock Thomas Ahern and Leinster back Jamie Osborne, who were both included in the squad as development players, have returned to their respective provinces.

Ireland have played Japan nine times, winning eight games with the solitary defeat coming in the 2019 World Cup.

IRELAND Autumn Nations Series Squad 2021

Backs (19)

Bundee Aki (Connacht/Galwegians) 31 caps
Robert Baloucoune (Ulster/Enniskillen) 1 cap
Harry Byrne (Leinster/Lansdowne) 1 cap
Joey Carbery (Munster/Clontarf) 24 caps
Craig Casey (Munster/Shannon) 3 caps
Andrew Conway (Munster/Garryowen) 25 caps
Keith Earls (Munster/Young Munster) 93 caps
Ciaran Frawley (Leinster/UCD)*
Jamison Gibson Park (Leinster) 10 caps
Mack Hansen (Connacht)*
James Hume (Ulster/Banbridge) 1 cap
Hugo Keenan (Leinster/UCD) 13 caps
Jordan Larmour (Leinster/St Mary's College) 30 caps
James Lowe (Leinster) 6 caps
Stuart McCloskey (Ulster/Bangor) 6 caps
Conor Murray (Munster/Garryowen) 89 caps
Garry Ringrose (Leinster/UCD) 34 caps
Johnny Sexton (Leinster/St Mary’s College) 99 caps (capt)
Simon Zebo (Munster/Cork Constitution) 35 caps

Forwards (20)

Ryan Baird (Leinster/Dublin University) 5 caps
Finlay Bealham (Connacht/Buccaneers) 16 caps
Tadhg Beirne (Munster/Lansdowne) 22 caps
Jack Conan (Leinster/Old Belvedere) 20 caps
Gavin Coombes (Munster/Young Munster) 2 caps
Ultan Dillane (Connacht/Corinthians) 19 caps
Caelan Doris (Leinster/St Mary’s College) 9 caps
Tadhg Furlong (Leinster/Clontarf) 49 caps
Cian Healy (Leinster/Clontarf) 109 caps
Iain Henderson (Ulster/Academy) 63 caps
Rob Herring (Ulster/Ballynahinch) 22 caps
Ronan Kelleher (Leinster/Lansdowne) 13 caps
Dave Kilcoyne (Munster/UL Bohemians) 45 caps
Peter O’Mahony (Munster/Cork Constitution) 76 caps
Tom O’Toole (Ulster/Ballynahinch) 1 cap
Andrew Porter (Leinster/UCD) 37 caps
James Ryan (Leinster/UCD) 37 caps
Dan Sheehan (Leinster/Lansdowne)*
Nick Timoney (Ulster/Banbridge) 1 cap
Josh van der Flier (Leinster/UCD) 32 caps

Follow Ireland's November internationals v Japan, New Zealand and Argentina via our live blogs on RTÉ.ie/sport or the RTÉ News app, or watch live on RTÉ2 and RTÉ Player. Live commentary on RTÉ Radio 1.