Munster and Leinster have both named their teams for this weekend’s Heineken Cup encounters.
In total there are seven changes to the Munster side that defeated Edinburgh in Round 2 of the pool stages in October.
James Coughlan, Ronan O’Gara, Keith Earls and Felix Jones are all handed starting places, while Conor Murray keeps his place at scrum-half.
Dave O’Callaghan will make his first Heineken Cup start after injuries ruled out Niall Ronan, Sean Dougall and Tommy O’Donnell.
They face Saracens at 6pm tomorrow.
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Jonathan Sexton will make his 100th appearance for Leinster when he lines out for the province against Clermont on Sunday.
Andrew Goodman makes his Heineken Cup debut in the centre alongside Gordon D’Arcy who will become the most capped Leinster player in Heineken Cup history.
Sean O’Brien has been named at number 7 alongside Kevin McLaughlin and Jamie Heaslip, while Leo Cullen captains the side.
Three games are down for decision tonight, with Ulster and Connacht both in action.
In Pool 3 Connacht host Biarritz from 8pm.
At the same time in Pool 4 Northampton take on Ulster, while Glasgow face Castres at 7.35.