Maybe the biggest concern was for the New Zealand Warriors, where captain and key forward Tohu Harris came up with a second half crusher tackle on Penrith fill in centre Luke Garner during the club's 32 points to 6 loss.
The tackle was penalised and placed on report, but the match review committee have seen it fit to return a Grade 1 charge on the tackle, despite the fact it appeared as if Harris had committed a textbook crusher style tackle.
The offence - which is the first on the 12-month rolling record for Harris - will see him pay $1000 with an early guilty plea or $1500 if he rolls the dice and loses at the judiciary.
Walker, Graham and Hazelton have all been slapped with Grade 1 careless high tackles on Braydon Trindall, Joseph Suaalii and Billy Smith respectively. For Walker, a first offence means he will be up for $1000 with an early guilty plea or $1500 to fight and lose, while Graham and Hazelton will both pay either $1800 or $2500 for a second offence.
It will also be Graham's final offence of his career, with the Sharks second-rower slipping into retirement.
The other charge was recorded against Nikora for dangerous contact on Suaalii. Like the high tackles, the offence is Grade 1 and he will pay either $1800 or $2500 if he loses at the judiciary.
All five players have until midday (AEST) on Monday to determine their pleas.