Carlos Alcaraz had a heated row with the umpire before refusing to follow orders during his latest win at the Cincinnati Open. The second seed comfortably won through to the last-16, seeing off Luca Nardi 6-1 6-4.

However, the win was overshadowed by an incident with the official in the first set. During a break in play, Greg Allensworth asked the Spaniard to cover the logo on his water bottle. Explaining his order, the umpire explained that the logo contradicted tournament sponsorship deals.

"It's what we've been told," he said. However, Alcaraz refused to comply, and could be heard vehemently arguing back before continuing to use his bottle as normal.

"Yeah but it wasn't my fault," he said. "Why would I have to cover it when it wasn't my fault? Because it's your fault you're saying I have to cover it now? No, I'm not going to cover it."

The flashpoint didn't appear to adversely affect the 22-year-old on court. He was rampant in the first set, winning 13 of the first 14 points, and wrapped it up in only 27 minutes.

However, he had to fight back in the second, trailing 4-2 before storming back to reel off four games in succession. Alcaraz will now play ninth seed Andrey Rublev in the last eight.

MORE TO FOLLOW

We'll be bringing you the very latest updates, pictures and video on this breaking news story.

For the latest news and breaking news visit: Football - Football Transfer News, Scores and Results | Express.co.uk. Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you.

Follow us on Twitter @‌dexpress_sport - the official Daily Express & Express.co.uk Twitter account - providing real news in real time.

We're also on Facebook @‌dailyexpresssport - offering your must-see news, features, videos and pictures throughout the day to like, comment and share from the Daily Express, Sunday Express and Express.co.uk.