The Broncos advance to the preliminary final but may lose Carrigan and Walsh to suspensions.
The Broncos are through to a preliminary final in a fortnight, but there's a chance they could be without superstars Pat Carrigan and Reece Walsh after the pair were sin binned in the epic win over Canberra.
During a frenzied four minute period in the second half, Walsh and then Carrigan were sent to the bin for separate incidents, Walsh for a headbutt on Hudson Young and Carrigan a shoulder charge.
Walsh and Carrigan are expected to be on the match review committee's charge sheet on Monday morning and could face suspensions.
Broncos coach Michael Maguire was asked the Walsh incident and if the fullback has anything to worry about.
"I'd have to have a look at it. They were at each other and it was probably more just conversation," Maguire said on Walsh's interaction with Young.
"I don't know if it's a headbutt. They sort of came together.