Djokovic claimed to have tested positive on 16 December last year, meaning he would just about be eligible to compete given the French Open is set to begin on 22 May.
The news comes after a leaked email from the Association of Tennis Professionals (ATP) alerted all players that vaccine passes will be needed to enter France.
The email stated: “[Players] have been informed by the French Tennis Federation that legislation will soon be passed by the French Government prohibiting non-vaccinated athletes from competing in any sporting event.
“It is currently uncertain whether players who have recently recovered from COVID-19 will be allowed to compete unless they have completed at least one dose of a two dose vaccine.
“Players will have to be fully vaccinated to be eligible to compete, OR have a medical certificate that exempts them from vaccination due to medical reasons.”