GREATER Western Sydney's injury worries have continued with star defender Nick Haynes a chance to miss multiple weeks with a fractured larynx after a clash with Western Bulldogs star Marcus Bontempelli on Sunday.

Haynes was injured in the second quarter of his team's 61-point loss to the Dogs at Giants Stadium.

The Giants are hopeful Haynes can be back for the first week of the finals but there is a chance that he doesn't play again this season.

GWS footy boss Wayne Campbell told the that the injury to cartilage in Haynes' throat is extremely rare. 

"He saw a specialist and he's going to miss the next two weeks, if not up to four, so it's pretty disappointing for Nick," he said. 

"Our doctors haven't seen an injury like it before. 

"He managed to see out the game but couldn't breathe after the game, and our doctors did the right thing by him after that." - Wayne Campbell

The athletic backman was felled by the late hit from Bontempelli and GWS received a down-the-ground free kick. 

Replays seemed to show contact was made between Bontempelli's right shoulder and the throat area of Haynes.

Haynes stayed down and left the ground shortly afterwards. 

He bravely played out the match to be one of the Giants' best with 26 possessions, nine marks and six rebound 50s.

Several GWS players remonstrated with Bontempelli and several scuffles broke out between the teams in the second term. 

The Bulldog was charged with rough conduct by the Match Review Officer on Monday but despite the Haynes injury, the incident was assessed as careless conduct, low impact and high contact.

Bontempelli was offered a $2000 sanction with an early plea.

Haynes has had an outstanding season for the Giants across half-back, averaging a career-high 18.2 possessions and 7.8 marks in his 19 games, and is a chance to be named in this year's Virgin Australia AFL All Australian squad.