World number one Novak Djokovic has withdrawn from the BNP Paribas Open in Indian Wells this week after failing to secure special permission to enter the United States.
Novak Djokovic's bid to take part in this month's tournaments in Indian Wells and Miami has been backed by the United States Tennis Association and the US Open.
Daniil Medvedev beats Novak Djokovic in the semi-finals of the Dubai Duty Free Tennis Championships.
According to reports, Novak Djokovic has applied for a special entry exemption in order to be allowed entry into the United States for Indian Wells and the Miami Open.
Novak Djokovic is on course to become the longest-reigning world number one in the history of the world rankings.
Australian Open tournament director Craig Tiley revealed the true extent of Novak Djokovic's hamstring injury.