Dolphins halfback Isaiya Katoa returned from NSW camp to star in a 48-10 thrashing of the Sydney Roosters and secure his side's sixth win in a row.
The Dolphins leapfrogged the Roosters into fourth position and confirmed their credentials as premiership contenders in front of 20,687 fans at Suncorp Stadium on Friday night.
The Roosters lost debutant centre Reece Foley and five-eighth Hugo Savala to head knocks in the first half. The visitors trailed 12-0 at halftime before the Dolphins put their foot down with six second-half tries.
Both sides were heavily impacted by State of Origin commitments with the Roosters losing seven to NSW and Queensland. Five Dolphins are in camp in Melbourne with the Maroons.
Katoa, who had been on standby for Blues playmaker Miitchell Moses during the week, had his fingerprints all over the win.