Newcastle Knights set up Dolphins showdown for last spot in finals

Newcastle should have scored off the back of it, but when Greg Marzhew failed to get the ball down and Jojo Fifita went 60 metres to score in the next set, the Titans led 4-0.

Then it was up to Ponga to lift his side back into the contest.

He put his stamp on the game when he got the ball 10…