Ireland remain hopeful Robbie Henshaw can shake off his hamstring injury and play a significant part in the World Cup.
Bundee Aki says "some people won't be happy with me pulling on an Irish jersey" but vowed to keep on doing Ireland proud.
Scotland forward David Denton has been forced to retire from rugby on the advice of doctors.
Rhys Patchell admits he has endured "a challenging year" ahead of his return to the Wales Test team against Ireland on Saturday.
Robbie Henshaw is "likely" to miss Ireland's World Cup opener against Scotland but Joey Carbery could return.
Rory Best hopes the "kick in the teeth" of Ireland's record defeat to England can jump-start their World Cup drive.
Lock Cory Hill has been included in Wales’ 31-man Rugby World Cup squad, despite suffering from a leg fracture.
Ross Byrne will start at fly-half for Ireland against England at Twickenham on Saturday.
The 2019 Rugby World Cup runs from Friday 20 September to Saturday 2 November.
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