St George Illawarra have broken a 15-game losing streak to sink the Broncos in a 30-26 upset win of the season.
The Dragons dominated from the outset at Suncorp Stadium in their first victory of the year after losing 11 on the trot in 2026.
It was their first success in 295 days, dating back to a 22-14 result over Cronulla on August 9 last year.
The loss was the bumbling Broncos' fourth in a row and has left their premiership defence in tatters, despite a powerhouse display by prop Payne Haas, who carried the team on his back in his return from injury.
To compound their woes, Queensland forward Pat Carrigan succumbed to an ankle injury.
St George Illawarra's victory showcased the power and passion of a young forward pack that is the future of the club.