Leinster have been handed a major boost ahead of next weekend's Champions Cup clash against Saracens.
After initial fears he would miss the game, scrum-half Luke McGrath will return to the fold to captain the side against Ospreys tomorrow night at the RDS.
The 25 year old was injured in the game against the Scarlets, which took place over the international period.
He'll start alongside Ross Byrne in the half-back positions, with Joey Carbery starting at full-back.
Fergus McFadden and Barry Daly make up the back three, while Rory O'Loughlin will play outside Noel Reid in the centre.
It's an all international front row, with Jack McGrath and Andrew Porter either side of Sean Cronin.
Scott Fardy partners Ross Molony in the second row
And the back-row consists of Irish internationals Jack Conan and the Ulster-bound Jordi Murphy, along with Josh Murphy.
With both Carbery and Byrne on the pitch, Leo Cullen has opted not to name a replacement 10, with Jamison Gibson Park, Dave Kearney and Adam Byrne the replacement backs.