The Chelsea star is in a long-term relationship with Valentina Cervantes.
Wanda Nara reportedly sent a flirty text to Enzo Fernandez
Fernandez's partner Valentina Cervantes will appear on Celebrity MasterChef in Argentina
Fernandez and Valentina are long-term partners
However, his partner is set to go head-to-head with Wanda, 38, on Argentinian TV.
The former Wag of Mauro Icardi is the host of MasterChef Celebrity in Argentina.
Valentina, 25, is due to go on the show and speak to Wanda throughout filming.
Argentine outlet Infobae has claimed that Wanda will address rumours that she messaged Fernandez to Valentina.
It is alleged that Wanda sent a message to Fernandez after spotting him walking in her neighbourhood.
It supposedly read: "I just saw you in the neighbourhood, write to me if you want."
Fernandez reportedly showed the message to Valentina as he was aware she was due to go on the show.
The magazine Caras has claimed that it has led to tension with Valentina "uncomfortable" with Fernandez crossing paths with Wanda.
However, it has now emerged that Wanda labelled the rumour as "nonsense".
She is believed to have said: "And I'll take this opportunity to clarify the nonsense they're saying about me and your husband; it's false."
Wanda also offered some advice to Valentina in addition to her denial.
She added; "Made-up stories. Welcome to fame. That's how it is."
Valentina has previously openly insisted that she has no problem with Wanda.
She said: "They're always going to stir that up, but what do I know?
She has 17.4million followers on Instagram
Valentina has 3million followers on the social media platform
"It's mostly people who create it, because I have no problem with her. She's never done anything to me."
She has also insisted that she is not aware of any message being sent to Fernandez by Wanda.
Valentina added: "No, not that I know of, I haven't seen any message.
"No, no, Enzo never spoke to me about anything. No, he never mentioned any of that to me."