Socceroos World Cup hopeful Daniel Arzani has admitted the daunting prospect of his first national team camp, but says the help of Tim Cahill has made the experience easier.
The 19-year-old was named in Bert Van Marwijk's 26-man preliminary squad for Russia, with the players gathering in Antalya, Turkey to be put through their paces.
Melbourne City winger Arzani says he doesn't really know many other Australian players at the camp, but has been thankful for the presence of former teammate Cahill.
"Coming into camp it was a bit frightening at first because I don't actually know anyone," Arzani said.
"But knowing that I've got Timmy - he's a good friend of mine - he's very helpful.
"I just want to get the first session out of the way so I can see where I'm at."
Arzani understands what he needs to do to make the plane to Russia, but is under no illusion of the challenge he faces.
"For me I've just got to prove that I'm invaluable to the team and that I have something to add," he said.
"I think that will come with just doing my own thing and hopefully doing well.
"I think coming in the national team camp as such a young player, you are kind of like starting over again.
"I've got to just prove my worth and maybe more so than anyone else."
Despite being born in Iran to Iranian parents, Arzani said it was always his 'dream' to play for the green and gold.
He revealed his admiration for past and present Socceroo stars as a driving factor in his desire to represent Australia.
"I watched a lot of Harry Kewell, Tim Cahill, [Mark] Bresciano and they were all absolutely amazing players," Arzani said.
"They are the golden generation of Australian football and I really enjoyed watching them - I base my game around a lot of them as well.
"[Playing for Australia] would be a dream come true.
"Since I was young, I always dreamed of playing for Australia and to think that could be happening over the next couple of weeks is amazing."
Following their first friendly against the Czechs, the Socceroos will take on Hungary in Budapest on June 9 before heading to their Kazan training base in Russia.