After one month, 16 nations, and 30 games, it is less than one week until the next Rugby League World Cup winner is crowned.

Australia and Samoa will go head-to-head to find out who can arise to the occasion.

Entering the final both nations have had a separate journey as they get ready to battle it out against their opposition.

These are the three key match-ups that will help define the winner of the Rugby League World Cup final.

2. Nathan Cleary vs Jarome Luai

The Penrith Panthers play-makers Nathan Cleary and Jarome Luai have gone through everything together. Whether it was competing in the State of Origin, playing in back-to-back premierships or beginning their career together, the halves will be at odds when the whistle blows to signify kick-off for the World Cup final.

Alongside Panthers teammates Liam Martin and Isaah Yeo, Nathan Cleary will don the Australian jersey for the fourth time this tournament. Cleary will control the game through his ball skills and kicking ability.

A constant threat from anywhere on the field, he has provided the Kangaroos with five try assists and ten linebreak assists so far this tournament. He was back to his brilliant best against New Zealand having 609 kicking metres which include nailing bombs to discomfort the opposing backs.

While Cleary has Martin and Yeo, Jarome Luai will be accompanied by Panthers teammates Stephen Crichton, Brian To'o and Taylan May. Heading into the World Cup there was a lot of expectation on Luai to guide the Samoan team. After the embarrassing loss to England in their first game, critics wondered if he has what it takes to be a premium five-eighth.

Since then, he has become a weapon for Samoa being the best player on the field. He has contributed two tries, nine try assists and forced three dropouts of his kicks in the attack. Luai is looking to take the reigns off Cleary as the Panthers number one play-maker.