ABU DHABI: US Open champion Emma Raducanu has tested positive for COVID-19 and has withdrawn from this week’s Mubadala World Tennis Championship, the tournament"s organizers have confirmed. “Emma is now isolating and following all necessary protocols. We wish her a quick recovery and hope to see her back on the court soon,” they said. “We are looking at alternative top female competitors to go head-to-head with Belinda Bencic; further updates will be provided in due course.” Raducanu said: “After testing positive for COVID-19, I will have to postpone until the next opportunity to play in front of the fans here, which I was very much looking forward to. I’m isolating as per rules and hopefully will be able to get back on court soon.”