After years of near misses, the Sharks have a chance to reach another preliminary final, while the Roosters try to stay alive and set up a meeting with the Dolphins.
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It took less then a minute for the Broncos to score the opening try against the Knights in their NRLW semifinal.
The Broncos ended up scoring at just under a point a minute in a 34-0 opening half, with Romy Teitzel doubling up and former Newcastle halfback Jesse Southwell slotting 5/6 conversions.
Brisbane will face local rivals the Titans on the Gold Coast on Sunday, September 27.
The Sharks have centre Mawene Hiroti back in the starting line-up this week, with Riley Jones dropping to the bench.
Cronulla five-eighth Braydon Trindall will continue to play through the pain of his injured shoulder.
For the Roosters, Angus Crichton is back on the bench.
Hello and welcome to ABC Sport's live coverage of tonight's NRL semifinal clash between the Sydney Roosters and Cronulla Sharks.
It's a contest between two perennial finalists for whom a loss at this stage will be nowhere near good enough.
The tension is ratcheting up as we approach a 7:50pm AEST kick-off at the Sydney Football Stadium.