World Cup 2013: Sam Tomkins and Kevin Locke play down club clash before England take on New Zealand Full-back Locke's future looked in doubt at the National Rugby League club when Tomkins's world-record transfer from Wigan Warriors was announced in September. The 24-year-old New Zealander was rumoured to want out, annoyed at Tomkins landing a £400,000-a-year, three-year deal, but eventually agreed to stay and fight for his place. The first chapter of that tussle will be played out on Saturday, with Locke admitting: "It will be nice to put a marker down. I will be doing everything I can to be at my best and he will be doing the same. But I am not just out there to target him. If I focus on one player, I will not be getting my job done. Tomkins diplomatically avoided questions about his battle with Locke or the other Warriors players in the squad, including captain Simon Mannering, saying: "They are not my team-mates yet so I am fully focussing on playing well for England. Hopefully I will get to meet a few of them after the game and have a chat. Until then they are my opponents. Another struggle for power sees England star Sam Burgess, one of the highest-profile players in the NRL where he plays for South Sydney Rabbitohs, go head-to-head with a player whose superstar status eclipses even his. Virtually everything Sonny Bill Williams has touched so far in league, rugby union and heavyweight boxing has turned to gold and his confrontation with Burgess will have a huge bearing on his hopes of adding a league World Cup medal to the one he won in union two years ago. Burgess claimed first bragging rights when he floored Sydney Roosters forward Williams with a massive hit in the Kiwi's first game back in the NRL in March. A clip of the earth-shattering showdown has been watched on YouTube by more than 369,000 people. This Saturday it will be intriguing to see who ends up with the bragging rights when it really matters. Burgess said: "Sonny's great for the game and great for the World Cup and you always enjoy playing against the best players. I've got to know him a little bit and he's a very nice, humble guy, a great athlete and I've certainly got a lot of respect for Sonny. But once you get on the field it's a competitive game and I guess we'll both get stuck in. It will be tough to control him but we'll look forward to that challenge.