Along with his Australian national team-mates, the 20-year-old midfielder travelled to Brazil to play next summer's World Cup hosts in a friendly.
Some friendly - it finished 6-0 to the Samba soccer stars, to the noisy delight of the 71,000 fans in attendance.
Rogic was thrown on with 11 minutes to go and his side already five down to get some experience of playing in the Estadio Nacional de Brasília, where several of next year's World Cup finals matches will be staged.
And, despite the Saturday night mauling - which has led to calls for coach, Holger Osiek, to be removed - the Hoops starlet reckons the trip has only whetted his appetite for more big-time action.
Rogic recognises he faces the most important season of his life, with Celtic preparing to play in the group stage of the Champions League again and the Socceroos building up to the World Cup finals.
Helping his country qualify for Brazil 2014 deep into the summer just passed, then picking up an ankle injury which delayed his return to action with Neil Lennon's side, means he has been denied the flyer he really wanted.
Now Rogic means to make up for lost time.
And, as he welcomes back the rest of his Hoops team-mates who have been on international duty and gets down to preparing for Saturday's lunchtime kick-off at Tynecastle, he hopes Lennon will give him the game time he knows he needs to retain his place on the Oz squad.
Rogic will have the bragging rights over Georgios Samaras, Joe Ledley, Scott Brown, Mikael Lustig et all as they recount their tales of playing for their respective countries during the break from club action as no one else at Lennoxtown can yet say their nation has booked their place in the World Cup finals.
But, he might want to keep quiet about what happened when the Aussies had their early taste of playing football in Brazil.
Once again Rogic - a former Aussie Olympic team player who only won his first full cap in June - had to be patient as he waited for his chance, starting the match against Neymar, Jo and Co. from the bench.
That's something he has become accustomed to since arriving at Celtic in January from Central Coast Mariners.
BOTH at country and club level, he would like to start, to show he is developing into a player who can be relied on to deliver 90 minutes.
But, having begun only one of his eight games for the Socceroos and four out of his 10 appearances for the Hoops, he is aware patience is not just a virtue but a necessity for an aspiring star.
He also acknowledges it is what he does on the field and in training, not what he says, that will open the door to a place in the first XI of Celtic and Australia.
The rangy midfielder with an eye for goal said: "Every player always wants to start, and I'm no different in that respect.
"But, being realistic as well, it's been hard of late for both club and country, so I know I need to push in both teams and, hopefully, really head in the right direction towards starting."
With the golden ticket to the World Cup finals dangling tantalisingly in front of his nose, Rogic concedes this will be a defining season in his, so-far, short career.
The man who only moved up to senior football a couple of years ago after catching the eye as a futsal star said: "Of course I want to make sure I'm back in Brazil in nine months' time.
"And I'm going to do everything I can in camp and at my club to continue getting called up.
"I want to keep representing my country, and I certainly want to play a bigger role as well."
Rogic may be playing his club football on the other side of the world. But, in this age of super-fast communications, everything he does in Scotland is followed and scrutinised Down Under.
Like every player, he understands the attention paid to the Champions League makes it a competition which can ensure you are making headlines around the globe.
CELTIC had already successfully completed their group stage schedule by the time Rogic signed for the club last season.
And, with concerns over his match fitness, Lennon elected not to include him in the squad registered for the last 16 games against Juventus in February and March.
The young Aussie has been listed in this season's squad for the group games, and is desperate to get his first taste of the action when the Hoops line up against AC Milan, Barcelona and Ajax.
He is excited, but not fazed. After all, he has just played in Brazil against one of the favourites for next summer's finals.
Rogic said: "These are the best teams in the world and the best players in the world.
"The thought of testing yourself against them is very exciting and I am really looking forward to the coming weeks.
"I don't think we could have asked for a tougher group, and I am very proud to be a part of it and looking forward to it."
Of course, he already knows how dangerous Barcelona's Neymar can be,
The young Brazilian was one of the scorers in the rout of Australia. And, when Rogic next sees him, Neymar will be lining up against Celtic alongside Lionel Messi.
Barca are once again listed among the hot favourites to lift the Champions League in Lisbon next May.
But, having seen Brazil in full flow, perhaps facing the stars of the Nou Camp might not now seem quite so daunting.
Rogic said of Luiz Felipe Scolari's resurgent side: "If they are not the best, then they are one of the best teams in the world right now."