Israel Folau
Israel Folau is primed to make an impact for the Wallabies in the UK Getty

Australia's code-swapping full back Israel Folau broke records in rugby league after his debut at just 17 before trying his hand at Australian Rules. In 2012, he made the decision to switch once again, this time finding his new home in the world of rugby union.

With a wide skill set and power in abundance, there are already suggestions that the 26-year-old may try his hand in the NFL later down the line. But his immediate focus is currently on leading the Wallabies to a third World Cup title.

"This is definitely the pinnacle," the fullback said. "Now that it is getting closer I'm realising how big the event is. Not that I'm feeling any pressure. You want to try and make the most of the opportunity. It comes around every four years. Some guys don't even get to play in a World Cup. So I'm just grateful for the position I am in."

Folau's contribution since marking his Test debut against the British and Irish Lions in 2013 with two tries has been formidable, registering 18 in all in his 33 Tests and making the no.15 shirt his own. The Wallabies already boast one of the most dangerous backlines competing at this year's World Cup; Folau may just be the most potent weapon amongst them.

After deciding he had had enough of Australian Rules and turning down a string of rugby league clubs, Folau opted for New South Wales Waratahs, and his first meeting with current Australia boss Michael Cheika.

A measure of just how quickly Folau had placed himself into the upper echelons of the rugby union code came when he claimed the John Eales Medal and Super Rugby Player of the Year Award in 2014, having already played an integral role in helping his side secure their maiden Super Rugby title.

While playing in the gold jersey, his rise has been equally meteoric. Following on from that debut double against the Lions, he went on to feature in all 15 of Australia's games in 2013, picking up 10 tries along the way.