Miami Open: Sabalenka and Gauff win, Medvedev exits, and the camera worries about the referee

World No. 1 Aryna Sabalenka made quick work of her Miami Open match against Cheng Qinwen to advance to the quarter-finals.

It only took the champion an hour and 25 minutes to defeat her Chinese opponent 6-3, 6-4.

Sabalenka (27 years old) has won the US Open in the past two years and appears to be in a calm state. She will face Hayley Baptiste in the quarter-finals after the American defeated Latvian Jelena Ostapenko by a score of 6-3, 6-4.

Fourth seed Coco Gauff also qualified for the quarter-finals with her difficult victory over Romanian Sorana Cirstea 6-3, 4-6, 6-2.

The 22-year-old American served six double faults and was broken five times in a weak display, but she had enough to win and set up a match against Amanda Anisimova or Belinda Bencic.

The Miami tournament is Gauff’s home event and she is eager to win the title but won’t put any pressure on herself about doing so this year.

She entered the event after retiring from the Indian Wells tournament earlier in the month, when a nerve problem in her left arm caused her to withdraw from her third-round match.

“I don’t really feel pressure, I feel more supported at this event,” she said.

“I want to win this tournament so badly because it’s my local tournament. But I didn’t have the best preparation, so lowering expectations allows me to be free and not expect too much from myself.”