Defending champions Brisbane Roar ended Adelaide United's A-League season with an ominous 2-1 away victory in Sunday's elimination final.
The Roar, with Luke Brattan and Ivan Franjic scoring, set up a semi-final against Western Sydney Wanderers next Friday night.
Central Coast Mariners host Melbourne Victory in the other semi-final next Sunday.
Brisbane outclassed Adelaide, whose goal was scored late by Dario Vidosic, but Roar playmaker Thomas Broich and defender Jack Hingert suffered game-ending injuries.
Broich damaged his left ankle in a tackling tangle and was substituted at half-time while Hingert was subbed in the 66th minute with an injured right ankle.
The injuries took some gloss off a sparkling triumph for the Roar, with their defender Brattan driving the first nail into Adelaide's coffin in the 27th minute.
Brattan snuck forward, and was sighted by Broich taking a corner, and the German arrowed a long cross to his teammate.
Brattan, gifted vast space by the Reds, pulled the trigger on a low shot from 20 metres which cracked into the shins of unexpecting Adelaide defender Cassio, standing a metre from the goal line.
The ricochet gave Reds keeper Eugene Galekovic no chance and the Roar took a deserved lead.
Brisbane struck a second blow one minute into injury time when Mitch Nichols created Franjic's goal.
Nichols launched a threatening cross into the box which found Franjic on angled run, the industrious midfielder slotting a simple goal from five metres.
The Roar, minus Broich then Hingert, absorbed the best Adelaide could throw at them in the second half until Reds star Vidosic scored in the 89th minute, driving home a low right-footer.
But Brisbane held on against a frantic Adelaide in the final minutes for a deserved victory to keep their championship defence alive.