However it could be the last time the Irish province see those names for two months with the Six Nations looming - meaning it is time for other players to shine.
O'Mahony's own opportunities this season have been limited due to a groin injury, following a breakthrough 2014/15 campaign that saw him appear in the GUINNESS PRO12 18 times.
But the 26-year-old, who starts against Treviso, believes there is no reason why new stars cannot be born over the next run of games.
"Like every other Pro12 team we are going to be missing our internationals," O'Mahony told the Irish Independent.
"It's a crucial period for us, we need everyone to step up.
"Everyone who maybe hasn't been getting that much game time, may be a bit disheartened that they haven't been getting game time, but there are opportunities coming.
"There is unbelievable quality across the team. Not everyone gets a chance but, like myself when I was trying to come through, you are sitting in the background and you are waiting. You are prepared, you are fully clued into what's going on.
"When you do get your chance you just have to take it. Sometimes a lot of lads come in you might not have even heard of. It could be a couple of their first games, a couple of the young academy boys."
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Guinness PRO12 Munster News
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