The Sydney Roosters have slammed Bulldogs veterans Michael Ennis and Sam Perrett, accusing the pair of taking dives in Friday night's heated clash at ANZ Stadium.
In a fiery period before half time, both Perrett and Ennis stayed down after respective high tackles from James Maloney and Sam Moa.
On both occasions tempers flared as all in brawls erupted, with Robinson later questioning the tactics of the Bulldogs.
"There were a couple of times they were down there waiting for the penalty," Robinson said.
"It is disappointing, but we can't change that, all we can do is do what we do. There is no way he (Ennis) was concussed.
Ennis and Frank Paul Nu'uausala went head to head as they went up the tunnel, exchanging words after the Bulldogs took the two points on offer on the stroke of half time as a result of the high tackle that left Ennis on the deck.
"It was heated, obviously Mick Ennis showed a bit of gamesmanship there, playing for penalties," Roosters skipper Anthony Minichiello said.
"We were just trying to stick to our game, it boiled over a few times."
Bulldogs coach Des Hasler defended his players, adamant they were legitimately hurt.
"Those sorts of players don't take dives," Hasler said.
"It's not in their make up, it's not in their game."
If that's the case, the Bulldogs might find themselves in hot water as neither Perrett or Ennis were taken immediately from the field for concussion tests.
Perrett left the field a minute or so later, but the interchange counted given he didn't leave the field immediately after receiving the head knock.
Moa revealed that he told Ennis to "get up and get on with it", which prompted David Klemmer and Sam Kasiano to run in and instigate a push and shove.
"I didn't really know if he was knocked out or not but I thought he wasn't hence the anger and the teammates got on the back of that," Moa said.
"I hope he's all right ... I just said a few nice words. I just said 'get up and get on with it', that's because at the time I didn't think it was a high tackle and then the refs obviously felt different."
Roosters coach Trent Robinson said the NRL had to introduce concussion guidelines but called on clubs to show "integrity" and not exploit the rules.
"There is always that risk but we had to bring it in, that was the important thing," Robinson said.
"I wasn't sure if I was for it or not but we have learnt a lot about safety this year and we needed it. We need to get those guys off that do get concussed. We just have to have some integrity in our clubs to make sure we use it properly."
