A report on Wednesday claimed the France international ruptured his anterior cruciate ligament in the weekend win against Crystal Palace, which would bring a cruel end to his debut season at the Etihad Stadium, following his £52million summer switch from Monaco.
The City stopper, however, has taken to his own Twitter account to rubbish those claims, and he is still waiting to be scanned and seen by renowned surgeon Dr Ramon Cugat, who is based at the Quiron Clinic in Barcelona.
Mendy, responding to one journalist on the social media platform, tweeted: "Your bio says journalist, so why you speak like a graduated doctor? No one has tested to see if ruptured ACL (anterior cruciate ligament) or not, even I don't know - LOL!"
Despite the defender playing down reports he could now be out for the season, Pep Guardiola is still expecting bad news and to be without the powerful 23-year-old for a number of months.
The City boss was forced to play midfielder Fabian Delph at left-back in Tuesday's Champions League victory over Shakhtar Donetsk, with one eye already towards now bringing in a capable deputy for Mendy in the January window.