An errant elbow from South Sydney forward George Burgess has soured a dramatic 24-18 NRL win over Newcastle on Saturday.
South's Rabbitohs became just the second team to win after trailing at halftime this season, overcoming a two-point deficit at the break.
But it could come at a big cost.
Burgess could face time on the sideline after elbowing Knights forward Mitchell Barnett in the side of the head during the first half at McDonald Jones Stadium.
Burgess, who knocked a ball on in the first tackle from the kick-off for the second time in the game, lashed out at Barnett after the hit.
He was sin-binned as a result of the incident, and also placed on report.
Rabbitohs' centre Hymel Hunt may also find himself in hot water with the match review committee after flooring Knights fullback Brendan Elliot with a high shot.
In further concerns for the Rabbitohs, halfback Adam Reynolds appeared to carry a right shoulder injury for most the match, just a week after returning from appendix surgery.
However it didn't stop him setting-up the match-clinching try with a perfectly-timed lofted pass for winger Braidon Burns.
It gave Souths a 22-12 lead with just over 20 minutes remaining, and from there they added to their lead with a penalty goal before Knights winger Ken Sio scored a late consolation try.
Knights captain Trent Hodkinson also found himself sin-binned late in the game, after telling referee David Munro he had "just cost (Newcastle) the match" after Souths won a scrum against the feed.
Meanwhile Burgess' errant elbow headlined an unhappy day for the Rabbitohs forward.
After being recalled to the starting line-up for the first time this season, the 24-year-old fumbled the first play-the-ball of the game.
Souths recovered to take a 10-0 lead after Alex Johnston and John Sutton each scored, but Burgess' brain explosion brought the Knights back into the match.
Newcastle scored twice while he was off the field, Hodkinson pivoting his way over in the ensuing set and Peter Mata'utia making the most of the numbers advantage when brother Sione put him through.
Burgess then had a chance to put the Bunnies back in the lead just on halftime.
Trailing 12-10, he carried a number of Newcastle defenders over the line, only to drop the ball and be denied by the bunker.
But five-eighth Cody Walker ensured it mattered little, grubbering for winger Bryson Goodwin to score in their first attacking set of the second-half to give Souths back a lead they never again lost.
