Poland’s Hubert Hurkacz, 25, stunned World No. 2 Daniil Medvedev 7-6(7), 6-3 in the quarter-finals of the Miami Open, ending the Russian’s hopes of retaining the No.1 

Medvedev spent three weeks as World No. 1 from February 28 to March 21 this year before relinquishing the spot to Serbian Novak Djokovic. Victory over Hurkacz would have moved Medvedev back to the summit on Monday.