There have been accusations of gamesmanship in the aftermath of South Sydneyโ€™s win over the North Queensland Cowboys, with Cowboys coach Todd Payten claiming the Rabbitohs exploited the rules to repeatedly prevent his team from gaining any momentum.

Payten claimed the Rabbitohs had bent the rules and exploited concussion checks at key moments to arrest North Queenslandโ€™s momentum and earn their players a break from the intense battle.

The Cowboys coach was left asking why South Sydney trainers stopped the game on multiple occasions for Head Injury Assessments โ€“ once when a player was hit in the ribs, and another just as the Cowboys were about to launch a set on South Sydneyโ€™s line.

โ€œThe game went for two hours tonight,โ€ Payten said after the game.

โ€œIโ€™m very confused about something at the back-end.

โ€œThere was one in the first half when Jason (Taumalolo) hit Junior Tatola through the ribs and there was an HIA.

โ€œThatโ€™s bending the rules at best.

โ€œThen there was (another) one when we forced an error. There was a scrum, it was our ball and momentum was in our favour. It was another opportunity where they could stop the game, they get their gas back and it halts all momentum in our favour.โ€

Payten suggested it was something the NRL needed to monitor as this yearโ€™s finals series rapidly approaches.

โ€œIโ€™d like the NRL to look at it. Iโ€™d like them to investigate or at least look closer at it.

โ€œI donโ€™t think you see it across the league.โ€

Of the three South Sydney concussion tests that took place, not one resulted in a player coming from the field.

South Sydney Rabbitohs coach Jason Demetriou hit back at Paytenโ€™s claims in his own post-game press conference, pointing to Paytenโ€™s history of similar comments.

โ€œHeโ€™s made a bit of a habit out of complaining about stuff,โ€ Demetriou said.

โ€œOur medical team are as diligent and respectful of the rules as anyone in the game

โ€œIf you look at how many HIAโ€™s weโ€™ve used and how many blokes weโ€™ve brought off the field, weโ€™d be one of the fewest in the competition.

โ€œIโ€™m going to stick up for my staff, they donโ€™t do that unless they know thereโ€™s a reason to do it.โ€

The sin-binning of Cowboys back-rower was also a point of contention, with Payten questioning why Hess was sent from the field yet Graham didn't even come off for a HIA, despite appearing heavily dazed after the initial contact.

"Campbell Graham didn't come off for an HIA, so I'm not sure if he got hit in the head or not," said Payten when asked about the incident.

"That's the part I'm confused about."