Ireland head coach Joe Schmidt has recalled Ulster front-rower Rob Herring in the World Cup squad as a replacement for injured Sean Cronin.
Cronin, who last played for Ireland during their World Cup game against Russia has been sidelined with a neck injury and will miss the remainder of the tournament.
Meanwhile, Herring has played eight Tests for Ireland since his debut in 2014 and was last part of the warm-up game against Italy in August this year. The 29-year-old has already linked up with the squad in Tokyo according to a statement released by the Irish Rugby Football Union (IRFU).
Sean aggravated a pre-existing neck muscle complaint and has been ruled out of the remainder of RWC19," read the statement.
"Rob Herring has joined the Ireland squad in Tokyo".
Meanwhile, IRFU also confirmed that they will not appeal against the three-week ban of Bundee Aki following his red-card incident against Samoa.
"The Ireland Management will not appeal the sanction handed down to Bundee.
"We are disappointed with the outcome and believe that Bundee's time will be best served helping prepare the squad for its remaining RWC19 fixtures."
Ireland will lock horns with New Zealand in the quarter-final in Tokyo on Saturday.