Cahir's Tommy O'Donnell has been named in Munster's match-day fifteen ahead of their PRO12 away game against Scarlets tomorrow.
Second place Munster will be hoping to retain top spot for a few hours at least as returning internationals Ian Keatley, Felix Jones and O'Donnell are all named in the starting fifteen.
CJ Stander makes his return from injury at number 8, while Dave Kilcoyne, Kevin O'Byrne and Stephen Archer will form a new-look front-row.
Kick-off is at 2.40pm tomorrow.
The game away to Scarlets will host a first trial of Hawk-Eye in rugby.
World Rugby is using the review system to assess how helpful it would be to the T-M-O, with a view to using it at the World Cup later this year.
It's hoped Hawk-Eye would reduce the time it takes for a T-M-O to make a decision.
Despite international commitments, it's a strong Leinster side that takes on Zebre in the Pro 12 at the RDS tonight.
Iain Henderson starts for Ulster as they make the trip to Edinburgh.
Both of those games kick off at 7.35.
While at 7.05, Treviso entertain Cardiff Blues.
