The 21-time Grand Slam champion Novak Djokovic might miss the Indian Wells Masters and Miami Open once more after the United States extended the requirement for all non-American nationals to get vaccinated against COVID-19. As per Skysports.com, the deadline for non-US citizens to receive the Covid-19 vaccination has been extended in the United States until at least April 10; as a result, Novak Djokovic, who has chosen not to receive the vaccination, may potentially miss the Miami Open and Indian Wells Masters in March.