Daniil Medvedev missed the chance to return to the top of the rankings as he was beaten by Hubert Hurkacz in the quarter-finals of the Miami Open on Thursday.
Medvedev would have become world number one once again if he had defeated Hurkacz, but the defending champion won 7-6 (9-7) 6-3 on Hard Rock Stadium.
Novak Djokovic will remain the top-ranked male player on the planet, thanks to Pole Hurkacz who levelled his head-to-head record with the Russian at 2-2.
Carlos Alcaraz or Miomir Kecmanovic will battle with eighth seed Hurkacz, who won 74 per cent of points on his first serve, for a place in the final.
“I think the return was crucial. I was able to make a lot of returns and get some free points on my serve, because having rallies with Daniil is fun, but they get long,” Hurkacz said on his on-court interview.
“It is good I was able to get some free points. I have spent a lot of time in Florida. So, I am used to the humidity.