The Brisbane Lions continued their push for an historic second premiership 'three peat' by crushing a depleted Port Adelaide side 19.12 (126) to 9.13 (67) in a dominant second-half performance.

The match, played at the Gabba, saw the Lions overhaul their rivals after a hard-fought first half, finishing with seven majors to three in the third quarter.

Key contributors included Sam Draper, who set up the decisive goal with a 60-metre run, and Will Ashcroft, whose two goals from 30 possessions extended the lead.

Zac Bailey (three majors) and Harris Andrews (13 marks) also shone, while Port Adelaide's Jason Horne-Francis kept them competitive with nine score involvements.The Lions' defensive intensity was evident in the final quarter, with Draper spoiling a Port shot on goal.

The result leaves Brisbane fourth on the ladder, a game clear of Adelaide, with crucial matchups against Carlton, Hawthorn, the Gold Coast Suns, and Collingwood remaining.The Lions' ability to adapt and exploit Port's depleted midfield proved decisive, showcasing their class and depth.