New caps at full-back and loosehead, single cap at right-wing, four further players with less than 20 appearances.

Leinster will look to the future of Irish rugby - if the future of Irish rugby is to be the eventual judge - against Zebre at the Aviva (5.30pm, Sat).So much so that with two uncapped players and one player with one cap in the starting line-up, Cullen is sending a signal.But given another four starting players have less than 20 caps and there are three uncapped players and a single-capped player on the bench it is set up to be benchmark stuff.Little wonder so the coach reaches back to 2016 and a European game with Bath at the RDs in 2016 Garry Ringrose, Luke McGrath, Peter Dooley, James Tracy, Tadhg Furlong and Ross Molony made their first European starts.So in the order mentioned up top full-back Hugo McLaughlin, loosehead Jeery Cahir are uncapped, right-winger Joshua Kenny has one appreance; centres Hugh Cooney, Charlie Tector, left-winger and second-row Diarmuid Managan have less that two score caps.While the front-row subs Bobby Sheehan, Alex Usanov and Andrew Sparrow have one cap between than and Caspar Gabriel is another yet to make his debut.It is going to be fascinating to watch but you might have to be there, the game has not been picked up by an of the Irish terrestrial TV stations. Perhaps the key area for Leinster given there is an experienced back-row and a likewise capable half-back pairing will be in the second-row where Ireland are known to be scratching for long-term replacents for Tadhg Beirne and James Ryan at a time when Joe McCarthy's injury profile hasn't been encouraging.Given Ireland have started a combination of those two in all 16 post-RWC2023 Tests before the Lions tour disruption forced a change of tack it is a reasonable assumption Mangan and Deeny will be expected to deliver as a 'seasoned pros' in a line-up such as this."Yeah, that's the thing like, the two lads have done well to here," agrees Cullen. "Diarmuid was a Leinster Academy player last year and he has played for 18 caps already. "So considering he is still so young, did two years in the academy and gets brought in and offered a senior contract, it has been a good process for him."That's a young player learning and if you like you could be take that Stormers game away as an example where he's calling the line-out, just trying to figure that out on the day, that was a tough day for some of those guys involved and he kinda got through it."Mangan turned 22 last March, Deeny was 25 that same month."Brian has played for 40 cxaps so he is obviously around a much lot longer and has seen different windows. "IF you are you're talking about Joe McCarthy and his progress, Joe has sort of come through and sort of accelerated through very, very quickly. James Ryan was probably something similar when he started out.

"Other guys maybe take a little bit longer and these (Mangan and Deeny) who Robin McBryde (Forwards Coach) invests a huge amount of time and they work hard both and work hard in games so let's see how they go."Leinster: Hugo McLaughlin, Joshua Kenny, Hugh Cooney, Charlie Tector, Andrew Osborne, Harry Byrne, Luke McGrath (CAPT), Jerry Cahir, John McKee, Rabah Slimani, Brian Deeny, Diarmuid Mangan, Max Deegan, Scott Penny, James CulhaneReplacements: Bobby Sheehan, Alex Usanov, Andrew Sparrow, RG Snyman, Alex Soroka, Will Connors, Fintan Gunne, Caspar GabrielZebre Parma: Lorenzo Pani, Mirko Belloni, Giulio Bertaccini, Marco Zanon, Albert Einstein Batista, Giacomo Da Re, Thomas Dominguez, Muhamed Hasa, Giovanni Quattrini, Matteo Nocera, Franco Carrera, Leonard Krumov (CAPT), Giacomo Ferrari, Samuele Locatelli, David OdiaseReplacements: Tommaso Di Bartolomeo, Paolo Buonfiglio, Marcos Gallorini, Giacomo Milano, Giovanni Licata, Migael Prinsloo, Martin Roger Farias, Luca Morisi