Brisbane have put themselves in the box seat to make the AFL Grand Final after comfortably handling Port Adelaide in the 2nd Qualifying Final.
The Power were right in the game for a half before the decision to sub Darcy Byrne-Jones out was quickly followed by injuries to Dylan Williams (hamstring) and Trent McKenzie (knee).
McKenzie hobbled back onto the field in the fourth term, but was clearly limited.
Kane Cornes believes the successive injuries "zapped" the energy out of Port as the Lions took control of the game.
Brisbane booted eight goals in that third quarter, Charlie Cameron breaking free from Ryan Burton for a moment and booting two quick ones.
Lachie Neale was well held by Willem Drew, but it didn't stop Brisbane from maintaining full midfield control, kicking 13 goals from stoppages.
First-year father-son midfielder Jaspa Fletcher kicked three and provided a spark all night in what was a breakout performance.
The Power will now host GWS at the Adelaide Oval next Saturday night.
Brisbane will play the winner of Carlton versus Melbourne.
Brisbane: 3.3, 8.4, 16.5, 19.9. (123)
Port Adelaide: 1.4, 5.6, 9.9, 11.9. (75)
Brisbane: McCluggage, Rayner, Daniher, Dunkley, Fletcher, McInerney
Port Adelaide: Rozee, Burton, Butters, Lord, Drew, Houston
Port Adelaide: Williams (hamstring), McKenzie (knee)