INTERNATIONAL: Daniil Medvedev is one win away from retaking the world number one spot after moving past American Jenson Brooksby 7-5 6-1 and into the Miami Open quarter-finals on Tuesday 29th March.

The U.S. Open champion lost his serve in the first game but found momentum after fending off two more break points in the fifth, winning the final four games of the first set in which he fired down six aces.

The Russian ripped through the second set in less than half an hour, dropping one first serve point.

The intensity will surely be high in his Masters 1000 quarter-final. If the Russian can beat his next opponent, Poland’s Hubert Hurkacz, he will replace Novak Djokovic at the top of the rankings.

Meanwhile, Australian wildcard Nick Kyrgios lost to Italian Jannik Sinner 7-6(3) 6-3 after a dispute with the chair umpire.

Kyrgios received a point penalty for bad behavior in the first-set tiebreak and in between sets angrily and repeatedly asked the chair umpire "What is unsportsmanlike?" before walking to his bench and whacking his racket against the court.

The gesture earned him a game penalty, allowing Sinner to open the second set up a break.

Sinner next faces Argentina’s Francisco Cerundolo.