There is further positive news with the return of Keith Earls who is also named on the right wing for the first time since sustaining a shoulder injury against Clermont Auvergne in last April's Heineken Cup semi-final.
There is a new back row for the Stadio di Monigo encounter with O'Mahony linking up with Niall Ronan and number 8 James Coughlan. Tommy O'Donnell is out of the squad following a knee injury sustained in last Friday's bonus point win over Zebre.
In rotating the squad, head coach Rob Penney has opted for new half-backs this week with Duncan Williams and Ian Keatley replacing Cathal Sheridan and JJ Hanrahan in the starting line-up.
Please note that the Treviso v Munster game will not be televised live in Ireland, but RTÉ Two will show extended match highlights on Saturday evening from 6pm.
MUNSTER (v Benetton Treviso): Denis Hurley; Keith Earls, Casey Laulala, James Downey, Simon Zebo; Ian Keatley, Duncan Williams; David Kilcoyne, Mike Sherry, Stephen Archer, Donnacha Ryan, Billy Holland, Peter O'Mahony (capt), Niall Ronan, James Coughlan.
Replacements: Damien Varley, James Cronin, John Ryan, Donncha O'Callaghan, CJ Stander, Cathal Sheridan, JJ Hanrahan, Ivan Dineen.