Two time grand final winner Petero Civoniceva believes the Canterbury Bulldogs has the best chance of causing an upset in Sunday's NRL decider against Melbourne Storm.

The combination of Storm trio Billy Slater, Cooper Cronk and Cameron Smith has the likes of Civoniceva, Scott Prince and Johnathan Thurston expecting the trophy to find a home in Melbourne this year.

Civoniceva said Canterbury will have a chance if they can break up Melbourne's rhythm.

Meanwhile, Former national sevens assistant coach Etuate Waqa will be cheering for his son Sisa Waqa this Sunday in Tonga.    

The former Fiji Bati rep said he has been speaking to his son to focus on every game and now he will feature in the NRL grand final.

The Melbourne Storm will be playing the Canterbury Bulldogs in the NRL final this Sunday at 7pm and Sisa Waqa has been named on the wing.

Story by: Aliki Bia