It has been claimed that Sharyn and Jimmy developed a friendship on the Before the Game, a now defunct AFL talk program on Network Ten.
But Sharyn is not the only one being linked to Jimmy amid his high-profile marriage split to his wife of five years, lifestyle influencer Nadia.
Lauren Mand, a "British based Australian socialite", has also been rumoured to be a friend of the footy star.
Some have even claimed that Lauren is an aspiring "WAG" and has been trying to get herself into social circles that would elevate her status for years.
In the past, she has also been linked to St Kilda players Jason Gram and Sam Fisher and she calls Melbourne's best-known Lothario, Shane Warne, a friend on Facebook.
After news broke that she may be involved in the high-profile Melbourne pair's break-up, the blonde quickly went to work on shutting down her social media accounts and also asked friends to keep shtum.
Meanwhile, Nadia, 34, broke her silence to the Herald Sun last week.
Nadia said she's having a "difficult" time coming to terms with their separation as she also grapples with claims the retired Geelong football player has since moved on with Lauren.
While she steered the conversation away from discussing his new relationship, a friend told the outlet that Nadia discovered Jimmy's new romance with Lauren through text message.
"Although I'm heartbroken, I don't want to comment specifically on what's been reported about Jim's trip to the UK as I don't think that is in anyone's interests," Nadia told the Herald Sun.
"My single focus now is to continue to protect, care and provide for my two beautiful boys as this is a personal matter."
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