The Canberra Raiders are wary of a misfiring Turbo kicking into gear, with Jordan Rapana pointing to Kalyn Ponga's sudden return to form on the eve of State of Origin.
Manly fullback Tom Trbojevic has struggled so far this season, having been hampered by injury during the opening rounds.
But Rapana said Ponga's performance last week was a warning shot for what Trbojevic was capable of against the Raiders at Canberra Stadium on Sunday.