The province revealed earlier this week that the scrum half had returned to full training following his neck injury and now he’s been named on the bench for the PRO14 game against Zebre on Sunday.
Tyler Bleyendaal continues his captaincy from inside centre and Academy player Gavin Coombes makes his first start in the Guinness PRO14.
Mike Haley continues at full-back as O’Mahony returns on the right wing with Alex Wootton maintaining his position on the opposite flank.
Rory Scannell starts in the 13 shirt with Bleyendaal completing the centre partnership.
Neil Cronin and JJ Hanrahan combine in the half-backs.
Academy player Sean O’Connor is named among the replacements.
Munster: Mike Haley; Ronan O’Mahony; Rory Scannell, Tyler Bleyendaal (C); Alex Wootton; JJ Hanrahan, Neil Cronin; Jeremy Loughman, Kevin O’Byrne, Stephen Archer; Fineen Wycherley, Darren O’Shea; Gavin Coombes, Chris Cloete, Arno Botha.
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