Charnze Nicoll-Klokstad insists he would never milk penalties after a high shot from Alex Seyfarth put the Warriors in position to snatch victory over Wests Tigers.

On a night when Tigers coach Benji Marshall claimed his side was hard done by the referees, one officiating call had the largest bearing on Sunday's game.

Tigers second-rower Seyfarth floored Nicoll-Klokstad while the Warriors were on the attack with the scores locked at 24-all in the final eight minutes.

Nicoll-Klokstad stayed down in a daze and was attended to by a trainer while replays showed contact between Seyfarth's shoulder and the fullback's chin.

"It was an accident," Nicoll-Klokstad told AAP of Seyfarth's hit.

"I went to brace for impact and he's quite tall so I braced exactly where his shoulder was."

Seyfarth went on report and the Warriors received a penalty, putting halfback Luke Metcalf in position to slot a game-winning field goal from 40 metres out.

"Obviously it was a disappointing way to end the game after being able to bring ourselves back into the game after a poor start," Seyfarth said at the NRL's multicultural round launch.

"I can't really make a comment on the call apart from that it was a little bit disappointing."

On Monday morning, Seyfarth received a grade-one careless high tackle charge and can accept a $1000 fine with an early guilty plea.

The Campbelltown crowd booed Nicoll-Klokstad when he carried the ball after the shot, apparently accusing him of playing for the game-defining penalty.

"I didn't even hear them," Nicoll-Klokstad said after the Warriors' 26-24 win.

"You don't want to be diving for a penalty. That's in the concept of our game, you don't want to be doing stuff like that.

"You don't want to be taking dives."

Nicoll-Klokstad pointed out that the referees had given the Tigers a warning that similar shots would be penalised.

Tigers recruit Jarome Luai had gone on report for making shoulder contact with the head of Warriors winger Ed Kosi earlier in the night.

"Edward Kosi got hit pretty much exactly the same. When it's obvious, it's a penalty," Nicoll-Klokstad said.

"If it's illegal, it's illegal."

Luai's shot left Kosi in need of a head injury assessment, with the four-time premiership-winner offered a one-game ban on Monday morning.

But Warriors coach Andrew Webster would not be drawn on whether he thought the Tigers co-captain should have been sin-binned on the night.

"When I watched it live, Ed's head jolted and I saw obviously that Ed needed to come from the field," Webster said.

"And that's the frustrating bit, I'm not critical of Jarome, things happen in football.

"But I'm more critical of the situation where you keep losing players ... and they keep their whole formation."