There is a petition circulating to allow Novak Djokovic to play at the U.S. Open, but the Serbian appears likely to miss the entire North American hardcourt swing barring a sudden change in COVID-19 protocols in the United States and Canada.

Djokovic has refused to take the COVID-19 vaccine, yet the 21-times Grand Slam winner remains on the entry lists for the ATP 1000 events in Montreal and Cincinnati that serve as tune-ups for the Aug. 29-Sept. 11 U.S. Open in New York.

In the case of the U.S. Open, which does not have a vaccine mandate, organizers previously said that per the Grand Slam Rule Book, all eligible players are entered into the main draw based on their ranking 42 days prior to the first Monday of the event.