Simon Zebo, Paul O'Connell and Niall Ronan will all start for Munster against Leinster this Saturday in Thomond Park.
Ronan is at openside while O'Connell starts beside Donncha Ryan in the second row.
Prop BJ Botha second row Donnacha O'Callaghan , flanker CJ Stander and scrum half Conor Murray are all on the bench.
Keith Wood and Gerry Thornley of the Irish Times previewed the game on Off The Ball last night, which you can read and listen to here.
Connacht
Meanwhile Connacht Head Coach Pat Lam has made a number of changes to the team from last week for their game away to Treviso tomorrow.
Props Brett Wilkinson and Nathan White move to the replacements bench and make way for Rodney Ah You and Ronan Loughney. Lock Aly Muldowney replaces the injured Michael Swift.
Muldowney partners Craig Clarke who captains the side this week. George Naoupu starts at Number 8.
In the backs, Tiernan O'Halloran and Fionn Carr are named on the wings while Danie Poolman moves to outside centre to partner Eoin Griffin.
Dan Parks starts at out-half and will be joined by Paul O'Donohoe, who makes his first start at scrum half this season.
Andrew Trimble against Newport Gwent Dragons ©INPHO/Presseye/Darren Griffiths
Ulster
Andrew Trimble has recovered from injury and is included in the Ulster team to face Ospreys at the Liberty Stadium tomorrow night .
Trimble underwent surgery on his finger three weeks ago and starts on the right wing in place of Tommy Bowe, who has failed to recover from a dead leg.
Captain Johann Muller returns, while Declan Fitzpatrick is selected at tighthead having recovered from the injury that he picked up against Connacht.
In the only other change, Nick Williams, who signed a new two-year deal with the Province this week, starts at Number 8, with Roger Wilson moving to the bench.
©INPHO/Billy Stickland
