Toa Samoa went back-to-back over Mate Ma'a Tonga with an 18-6 win in another stirring contest in the second leg of Saturday night's Pacific Test extravaganza at Pirtek Stadium in Parramatta.

After Papua New Guinea had edged Fiji 24-22 in the first international, the Samoans and Tongans turned on a battle royale.

Watch the highlights as the Frank Pritchard-led Samoans backed up last year's thrilling 18-16 win in Robina with a second victory.