Jaume Munar takes down Daniil Medvedev at Miami Open

Jaume Munar committed just 14 unforced errors on Friday as he delivered a dominating 6-2, 6-3 upset of seventh-seeded Daniil Medvedev to advance to the third round of the Miami Open.

Munar won 76.7 percent of his first-serve points and had 18 winners while finishing off the Russian in just 78 minutes. It is the third career Top 10 victory for the Spaniard.

"It means a lot," Munar said. "I am feeling great after all the work I have put in to have a tournament like this. I feel really comfortable here and I have been playing great this year on hard courts. It got a little bit tight at the end but I am happy with the performance and it means a lot."

Munar, 27, said he has been mixing up his game and changing strategies.

"I've been changing a lot," Munar said. "I changed techniques, tactics. It has been working very well this year. I think I have to keep improving to keep changing things."

Medvedev had a whopping 31 errors compared to just 14 winners. He also had four double faults and just one ace.

Munar will next face Frenchman Gael Monfils, who posted a 6-1, 3-6, 7-6 (8) victory over No. 26 Jiri Lehecka of the Czech Republic. Monfils had a 14-8 edge in aces.

Fourth-seeded Novak Djokovic of Serbia had nine aces while registering a 6-0, 7-6 (1) victory over Rinky Hijikata of Australia.

The victory allowed Djokovic to match Rafael Nadal for the most Masters 1000 victories at 410. Nadal was 410-90 and Djokovic is 410-91.

Djokovic had dropped three straight matches before beating Hijikata. He fell to Germany's Alexander Zverev in the Australian Open semifinals and lost first-round matches to Italy's Matteo Berrettini at Doha and Botic van de Zandschulp of the Netherlands at Indian Wells.

Djokovic will next face Argentina lucky loser Camilo Ugo Carabello, who rallied for a 6-7 (3), 7-5, 6-3 victory over Alex Michelsen.

No. 5 seed Casper Ruud of Norway had nine aces during a 3-6, 6-4, 6-4 triumph over Miomir Kecmanovic of Croatia. Ruud had a 44-30 edge in winners.

No. 9 Stefanos Tsitsipas of Greece had a 32-24 edge in winners while rallying for a 4-6, 7-5, 6-3 win over Chun-Hsin Tseng of Taiwan. No. 14 Grigor Dimitrov of Bulgaria recorded a 6-1, 6-4 victory over Federico Cina of Italy.

No. 15 Lorenzo Musetti of Italy recovered for a 3-6, 7-6 (4), 7-5 victory over Quentin Halys of France. No. 18 Felix Auger-Aliassime was a 6-4, 6-4 winner over Australia's Tristan Schoolkate and No. 22 Karen Khachanov of Russia sailed to a 7-6 (3), 6-0 win over Aussie Nick Kyrgios.