Benji Marshall must do dirty work in rugby, says All Blacks veteran Piri Weepu Auckland-bound ... Benji Marshall Picture: Gregg Porteous Source: DailyTelegraph VETERAN All Black halfback Piri Weepu says Benji Marshall's willingness for ``dirty work" will determine whether he makes a successful transition to rugby union. NRL star Marshall is poised to link with Weepu in the halves for the Auckland-based Blues next Super Rugby season. Blues halfback Piri Weepu, a friend of Marshall's who encouraged him to switch to union, said the 28-year-old had the skills to flourish in the game if he was prepared to work hard and commit to the tough stuff like cleaning out forwards at rucks. ``For me it's a question of waiting to see what his mindset is like," Weepu told Radio Sport. ``If he's willing to do some dirty work in terms of putting your head down in a ruck and smashing some guy that's over the ball. Meanwhile rising All Blacks five-eighth Beauden Barrett has revealed that he resisted overtures from the Blues to stay with the Wellington-based Hurricanes.