Robbie Diack and Darren Cave, who both played the full 80 minutes of Ireland's first Test against Argentina, are hoping to use the summer tour as a springboard for further caps.
Robbie Diack, who qualifies for Ireland through residency, made his Test debut in the 29-17 victory over the Pumas and the experience has the South African-born back rower hungry for more.
Thrilled to win his first international cap, he said: "It's been a moment I've been looking forward to for my whole rugby career, I've always wanted to play professional rugby and to get there and get a cap under the belt is special for me, especially because it is with such a special team.
"Standing and singing the anthem was a moment I'll never forget. It's been a long week, I'm now glad it's over and that we got the win."
Diack lined out at blindside flanker and seemed to revel in the physical nature of the clash at Estadio Centenario, tackling and carrying strongly and also featuring prominently as a lineout jumper.
"I was happy with aspects of my game, but there are definitely things I'll have to work on. I thought in defence I could have worked harder at times," he admitted.
"I'm still very happy. To get my first cap, to get 80 minutes and the win it's a day I will never forget and I just want to cherish it."
When giving his reaction afterwards, Joe Schmidt singled out Diack for his 'hard work in the first half' and the 28-year-old, who has played for Emerging Ireland and the Wolfhounds in the last 12 months, will hope for more game-time in next weekend's second Test.
Schmidt was also pleased with the contribution of industrious centre Darren Cave as the post-Brian O'Driscoll era began with the Ulsterman in the number 13 jersey.
Cave made a terrific midfield break early on and was inches away from scoring a try in the final quarter, just putting a foot in touch under pressure from Tomas Cubelli as he touched down in the left corner.
It was a sixth Ireland cap and fifth start for the Holywood native, but those appearances have been spread out over five years - he made his debut on the 2009 summer tour - and his determination to nail down a regular starting spot is obvious.
In assessing his efforts as part of an all-Ulster centre partnership with Luke Marshall, Cave said: "I'm pretty chuffed with how it went. I got my hands on the ball early, which was good. To be honest it's left me wanting more. I made a couple of small mistakes, as did everyone, and it just leaves me wanting to play next week."
With the Pumas fielding a largely domestic-based team, there was a degree of unfamiliarity that Cave and company had to cope with as they prepared for the tour opener.
"When I first saw the list of Argentinian players on the plane I didn't know a lot of them. Joe has hammered us with the individual player profiles all week and I've been very impressed, particularly with club rugby in Argentina, which I would have known absolutely nothing about. I've been very impressed with the standard."
Having played his first international since last year's North American tour, the 27-year-old wants to retain his starting jersey and help Ireland see out a 2-0 series win.
"I was sucking diesel a wee bit if I'm honest, having not played in a couple of weeks and it being a bit humid and a bit warm. But, as I said, it's just left me wanting more."
The Irish touring party have flown back to Buenos Aires ahead of the second Test in Tucumán, for which some personnel changes are anticipated.
Head coach Schmidt said: "We'd expect that there will be changes. We'll have a look at who came through today over the next 48 hours.
"We won't do a lot tomorrow (Sunday), a little recovery and back to Buenos Aires. We'll try and make some decisions on Wednesday."
Half-backs Conor Murray (dead leg) and Jonathan Sexton (tight quad muscle) picked up injuries during the three-try victory in Resistencia. The strapping applied to Murray's left leg was precautionary.
Ireland Women's Sevens captain Lucy Mulhall is in Langford this week for the Canada leg of the HSBC World Rugby Women's Sevens Series. Following Ireland's Bowl win in Atlanta, Lucy previews our prospects this weekend.
Ireland Women's Sevens captain Lucy Mulhall speaks about the build-up to the HSBC World Rugby Women's Sevens tournament in Atlanta, Georgia. The girls in green begin the pool stages against France at 12.52pm local time/5.52pm Irish time today.
IRFU High Performance Manager Colin McEntee reflects on the Easter matches played by the Ireland Under-18 and Under-19 teams, which ended last weekend with wins over the England Counties U-18s and France U-19s.
Watch highlights of the Ireland Under-18s' seven-try 43-0 victory over Scotland during the inaugural U-18 Five Nations Festival in Caerphilly, Wales. Number 8 and captain Caelan Doris scored a hat-trick of tries and winger Daniel Hurley bagged a brace.
Railway Union's Kim Flood made her debut at full-back for the Ireland Women in last weekend's 14-3 Six Nations win over Italy. She is looking forward to experiencing the partisan crowd at Donnybrook again this Sunday when Scotland are the visitors. Tickets are available from Ticketmaster.ie.
Ireland scrum coach Greg Feek spoke to Irish Rugby TV on the eve of the final round of the RBS 6 Nations Championship. He is happy that the team are focused but warns that it will be a tough encounter with Scotland tomorrow.
Looking forward to the lineout battle with Scotland, Ireland lock Devin Toner said: "We went well again Italy, I think our set piece went well. If we can just build on that and build on the positives then I think we'll be okay."
Joe Schmidt spoke to Irish Rugby TV this morning with an update on the squad, a look back at Ireland's nine-try win over Italy and a preview of our final match of the RBS 6 Nations Championship against Scotland.
Ireland Women's head coach Tom Tierney was pleased to see his new-look side come away with a 14-3 win over Italy. Full-back Kim Flood, winger Liz Burke and replacement centre Claire McLaughlin made their international debuts on the day.