Miami, March 27: Daniil Medvedev comfortably saw off Andy Murray in their third-round match at the Miami Masters, winning 6-4 6-2 on Saturday (March 26).
Medvedev must reach the semi-finals in order to retake the top spot in the ATP rankings from Novak Djokovic in April, and he got off to a positive start in Miami, not facing a single break point in his 90-minute win.
"On the days when you serve good, your opponent doesn't have this freedom to return, it helps you," Medvedev said post-match.
"[In the] second set, the scoreline was easier, it was much tougher in the beginning, but when your opponent knows you're probably going to get some aces and it's not going to be easy for him to return, he gets pressure on his serve and many times that is what happens in close matches."
Medvedev will face Pedro Martinez, who defeated Cristian Garin 7-6 (6-2) 6-2.
Reigning Miami champion Hubert Hurkacz got his title defence off to a good start with a 7-6 (7-5) 6-2 victory over Arthur Rinderknech.
Following defeats for Murray and John Isner, the Polish world number 10 is the only former champion left in the draw.
A number of men's seeds were beaten in their second-round matches on Saturday, however, including Canadian duo Felix Auger-Aliassime and Denis Shapovalov.
Miomir Kecmanovic continued his good run of recent form, defeating Auger-Aliassime in straight sets 6-4 6-2, while South African Lloyd Harris beat Shapovalov 6-4 6-3.
For his third consecutive ATP 1000 match, meanwhile, Stefanos Tsitsipas was pushed to three sets by an unseeded American.
After some entertaining hitting, with both looking to finish points early, the Greek third seed claimed four straight breaks of serve to eventually defeat Jack Wolf 6-4 6-7 (5-7) 6-1.