Novak Djokovic withdraws from Indian Wells amid US visa row

• Serbian had applied for Covid vaccine waiver to enter US
• World No 1 is replaced by Nikoloz Basilashvili at tournament

Novak Djokovic has formally withdrawn from the draw for the Indian Wells tournament in an indication that the world No 1's application for a Covid-19 vaccine waiver to enter the US might have failed.

The Serbian, who is one of the most high-profile athletes unvaccinated against the virus, applied to the US government last month for special permission to play at ATP Masters events at Indian Wells and Miami.