The former Hull KR man is now the joint leading try-scorer with six from the first four games and has racked up the most metres in the competition.
However despite being 30 at the time of the World Cup he sees no reason why he can’t force himself into the international set-up.
Despite this Cockayne said: “It is something that’s actually on my mind now. I do feel as though I am performing the best I have ever played at this level.
“I’d like to think I’ll be in with a shout. Whether it comes or not, that’s a different thing as there’s Briscoe, Charnley and Hall. I have got a lot to contend with, but it Steve McNamara is wanting something different I think I can offer him that.” he said speaking to the Yorkshire Post