The loss of hooker Andrew McCullough has soured Brisbane's spiteful 30-8 NRL win over South Sydney at Suncorp Stadium.
A revitalised Rabbitohs were also paying the price for the physical clash with Hymel Hunt (pectoral) expected to be sidelined for the season after an at times intense arm wrestle in front of a 40,275-strong Friday night crowd.
Ladder leaders Brisbane notched their fifth straight win but not all went to plan with McCullough suffering knee ligament damage in a 24th-minute Tom Burgess tackle.
There may be more headaches for Broncos coach Wayne Bennett too, with Joe Ofahengaue and Adam Blair reported for high tackles within a minute of each other in a fiery second half.
South Sydney may have slumped to their fifth loss in six games but showed some overdue fight after appearing down and out trailing 14-0 at halftime.