The South Sydney and Kiwis hooker Issac Luke is under investigation by the National Rugby League integrity unit after posting a homophobic slur on Instagram.
In the continuing fallout from the Rabbitohs' controversial 18-17 Easter Friday win over Canterbury, Luke posted the offensive comment on the social media site in response to attacks from Bulldogs fans.
"Get off my page you lil poofters" Luke wrote.
He later deleted the post.
Luke said was attempting to get in contact with a young Rabbitohs fan who was allegedly attacked in the ANZ Stadium crowd during the round five fixture.
Two spectators were charged with assault over separate incidents, while Bulldogs fans who showered officials with bottles are facing a life ban from the sport.
Luke's post on Saturday comes after Waratahs forward Jacques Potgieter was fined $10,000 by the Australian Rugby Union for making an on-field homophobic slur.