Michael Cheika has picked his side for Saturday's huge quarterfinal clash with England at Oita Stadium, and among his starters is 19-year-old center Jordan Petaia.

The youngster has been tipped by some as a future superstar of international rugby, but the time is now to step up on the big stage. Faced against the likes of Manu Tuilagi and Henry Slade, Petaia will have his hands full, but it's something coach Cheika believes he's ready for.

"The guy's been in around the squad for a while now even though he's young, he's more than ready to do this," the coach said. "The way his demeanor is, you wouldn't think he was picked, he was just loping around as per normal so it’s going to be great. I trust him infinitely and that’s why he's been chosen."

Cheika talks quarter-finals!

READ: https://t.co/9ncKgcoDqU #ENGvAUS #GoldBlooded #TeamRugby #RWC2019 https://t.co/1TER3pGW95

— Wallabies (@wallabies) October 14, 2019

"He’s been able to build good relationships within the team and is very well-liked and I think he's very consistent in that way. He's got a great demeanor and I really like it." 

Christian Lealifano gets the nod at flyhalf this week, with Matt To'omua off the bench. To'omua was an instrumental part of Australia's near comeback against Wales during pool play, and Cheika hopes he can provide a similar sort of spark against England. 

?Team announcement?@wallabies have announced their team to play @EnglandRugby in the quarter-finals at #RWC2019#ENGvAUS #WebbEllisCup

Find out where you can watch at https://t.co/z0BgdPYBjN pic.twitter.com/iLuuWfaa2V

— Rugby World Cup (@rugbyworldcup) October 17, 2019