Fans of the sport were quick to add their messages of support for Erin.
"Erin is the reason I love NRL - she is a wonderful representative of the game and her perspective is excepting professional," said one fan.
While another said: "She's brilliant - I love her."
Sylvia's supportive post came just hours after Erin had broken down in tears during a live radio appearance on Thursday.
The host, 37, has been plagued by vile trolls over claims that she is feuding with retired NRL player, Andrew Johns.
Wearing prescription sunglasses in a bid to hide her tears, Erin told WSFM's Jonesy and Amanda she is having a "rough" time in the lead up to Sunday's NRL Grand Final.
"I am so sorry, I haven't put my contacts in this morning. I had a rough night. I didn't sleep very well and these are prescriptions," Erin said, speaking about the dark sunglasses.
Speaking of the treatment she is receiving, Amanda said: "I don't understand why people give you a hard time, it p***es me off.
"I think it's because you are so professional, you are so good at your job and I think men don't like you being good in what they still see as their world.
"I admire the pants off you ... I just think you are the most professional female and it's threatened everybody."
Jonsey agreed with Amanda and said, "I admire the pants off you as well and I'm a man and I know a lot of men and they all rate you so don't fill your head with these d**kheads that say these horrible things.
"You're such a nice person and I know you very well and I've known you before you reached the pinnacle of fame you have now.
"You're well qualified to do this and [the online abuse] will go away. But don't read the trolls, don't follow them [or] that junk."
It had been claimed that the “feud” between Erin and Andrew dates back to 2017 when she replaced Paul “Fatty” Vautin as host of The Footy Show.
"Joey [Andrews' nickname] has never been a fan of Erin, which isn't fair because she works her a**e off ... The whole Footy Show thing, with Fatty being booted, that is where it started to go sour," the insider previously told The Daily Telegraph .
While another unnamed source told Daily Mail Australia claimed that Andrew does have a problem with Erin, saying he didn't like the way she giggled or spoke over people on the show.
"He just doesn't like working with her … Joey is a stubborn b***ard, if somewhere along the line she's p***ed him off he'll probably carry it around for the rest of his life."
