“They’re not talking,” a friend told the publication. “It’s definitely over. She (Nadia) is completely blindsided.”
The football power couple haven't been featured on each other's accounts since June.
The last photo of the pair together was posted to Nadia's Instagram and dates back to June 2.
Wearing a stunning bright yellow Dion Lee dress, Nadia cuddled up to a happy looking Jimmy.
"Hubby time ❤️", the socialite captioned the photo.
When approached for comment by the Daily Mail at his Melbourne home, Jimmy refused to comment.
Nadia and Jimmy share two sons, Aston, 4, and Henley, 1.
RELATED: Video surfaces of Miley Cyrus and Liam Hemsworth's last public appearance looking glum