O'Donnell has not played since dislocating his hip in August
Munster have been handed an early Christmas boost with the news that Tommy O'Donnell is to return to the squad for the first team this season on Sunday.
O'Donnell has been on the sidelines since dislocating his hip, playing for Ireland in a World Cup warm-up game against Wales in August. He will start Saturday's game against Leinster from the bench.
Anthony Foley makes four changes to the starting side that lost to Leicester last week in the Champions Cup.
BJ Botha, Donnacha Ryan and Jack O'Donoghue introduced at openside return to the forwards with Tyler Bleyendaal starting at fly half.
Munster team to face Leinster:
(15-9): Andrew Conway, Keith Earls, Francis Saili, Denis Hurley, Simon Zebo, Tyler Bleyendaal, Conor Murray.
(1-8): James Cronin, Mike Sherry, BJ Botha, Dave Foley, Donnacha Ryan, Robin Copeland, Jack O'Donoghue, CJ Stander (Capt).
Replacements (16-23): Niall Scannell, Dave Kilcoyne, John Ryan, Billy Holland, Tommy O'Donnell, Tomás O'Leary, Rory Scannell, Lucas Gonzalez Amorosino.