Daniil Medvedev beats Jannik Sinner in Miami Open final for fourth title of the year

Daniil Medvedev secured his fourth title from his past five events with an emphatic victory over Jannik Sinner in the final of the Miami Open on Sunday.

The Russian, who won three successive titles in Rotterdam, Doha, and Dubai before reaching the Indian Wells final prior to Miami, claimed the 19th ATP Tour trophy of his career with a 7-5, 6-3 victory at Hard Rock Stadium.

Italy's Sinner, also beaten in the Miami final two years ago and now with a 0-6 record against Medvedev, said he had not been at 100 per cent.

"We woke up this morning not at my best, I felt a little bit sick. Unfortunately today I couldn't play at my best," said the Italian, who added there had been no question of him pulling out of the contest.

"No, it was not that bad. But, you know, with the heat, when you run a lot, it gets a little bit worse and worse. Obviously the first half an hour we played in the sun also," he said.

Medvedev started confidently, holding serve to love while Sinner's first service game was a real battle. Sinner had to save a break point and fought through a 26-shot rally before coming through at the end of a 10-minute game.

In contrast, Medvedev again served to love but Sinner was showing signs of settling as he held his serve and then the Italian broke Medvedev to go 3-2 up, with a deft touch volley.

Medvedev immediately broke back, however, with Sinner's effort clipping the net and going out and after the Russian held again, the Italian had attention from the ATP trainer.

Sinner, looking uncomfortable in the bright sunshine, took a pill along with a powder in his water in the 30.5C heat.

Medvedev, looking composed and confident, grabbed the first set when Sinner was serving at 6-5 down and the Italian's poor shot into the