Wests Tigers duo Luke Brooks and Josh Reynolds have heaped more misery on Brisbane after steering their side to a 22-16 NRL win at Suncorp Stadium.
Replacement Michael Chee Kam was the hero with a solo try from a bumping run in the dying seconds to keep the Tigers well inside the competition top eight.
With scores level at 16-16 with 10 minutes left, the stage was set for one set of halves to drive their team to success.
Luke Brooks and Josh Reynolds had been the more composed pair all night and the Tigers pair helped orchestrate the field position that enabled the killer blow.
Brooks did not have the space to get a shot at field goal away but his poise and vision saw the ball shuffled on to Chee Kam who showed some fancy footwork to eventually crash over the line.
The defeat at home will mean even more pressure on Broncos coach Anthony Seibold whose team is well outside the eight after four losses from five games.
Only two teams -- Canterbury and North Queensland -- have conceded more tries than the Broncos this season yet it was the home side that kept their line intact for the first 37 minutes.
That did not mean there was a shortage of action.
Matt Gillett crossed for the Broncos in the third minute and teammate Jack Bird butchered an opportunity created for him after a clever build-up from the halves.
Tigers centres Robert Jennings and Esan Marsters squandered two try-scoring chances of their own and their side should have had more to show for the first half than one try to second-rower Luke Garner.
Payne Haas's return from a club-imposed sanction was precisely what the Broncos needed in the absence of suspended prop Tevita Pangai.
The 20-year-old ran for 100 metres in a powerful first stint of 31 minutes to justify at least some of the hype around one of the club's most exciting forwards.