Aryna Sabalenka climbs three places to fourth on WTA rankings after beating Ashleigh Barty in Madrid Open final
It was Sabalenka's 10th career title but her first on clay and, three weeks before the French Open, underlined the 23-year-old's improvement on the surface.
Sabalenka was beaten by Barty in the final in Stuttgart last month but exacted revenge at the Caja Magica, a storming 6-0, 3-6, 6-4 victory clinching the biggest title of her career.
Madrid Open: Alexander Zverev stuns Rafael Nadal in straight sets, sets up semi-final clash with Dominic Thiem
Zverev's impressive straights-set win at the Caja Magica earns him a meeting with Dominic Thiem in the Madrid semis, in what will be a repeat of last year's US Open final, which was won by Thiem.
Madrid Open: Ashleigh Barty sets up semi-final date with Paula Badosa; Rafael Nadal cruises into last 16
World number one Barty is chasing her fourth singles title of the year after her triumph in Stuttgart 10 days ago.
Harris, who beat world number four Dominic Thiem and Denis Shapovalov en route to the final in Dubai in March, pulled off another upset by ousting Dimitrov 6-3, 3-6, 7-6 (7/5).
Nadal is the top seed in Madrid and will play either compatriot Carlos Alcaraz or the Frenchman Adrian Mannarino in the first round while he is due to meet Dominic Thiem, a finalist at the French Open in 2018 and 2019, in the last four.
Osaka, the reigning US and Australian Open champion, has seven career hard-court titles, but has never managed to lift a clay- court trophy.
Barty and Swiatek, the most recent French Open champions, won their second-round matches on Saturday to set up the first-time meeting.
A leg injury meant Osaka missed last season's clay-court swing, and her last individual tournament on the surface was at Roland Garros in 2019.
A message from the tournament's official twitter account read: "Novak Djokovic will not be playing in the Mutua Madrid Open. 'Sorry that I won’t be able to travel to Madrid this year and meet all my fans”, said Djokovic. 'It’s been two years already, quite a long time. Hope to see you all next year!'".
Federer hasn't won a tour clay title since Istanbul in 2015; his most recent Masters triumph on the surface was Madrid in 2012.