Elena Rybakina said her reunion with controversial coach Stefano Vukov has boosted her US Open campaign after she demolished Britain’s Emma Raducanu to reach the fourth round on Friday.

The Moscow-born ninth seed from Kazakhstan — whose previous best result in New York was a pair of third round appearances — blitzed Raducanu 6-1, 6-2 in just over an hour on the Louis Armstrong Stadium court.

Vukov could be seen shouting his support from Rybakina’s box throughout the match, in what is only his second event since a ban preventing him from entering all WTA tournament venues was lifted earlier this month.

“I never had any issues with him, so for me, as I said, it’s just nice to see him in the box,” Rybakina said. “Definitely helps a lot, it’s important when the whole team can support you.”

See Full Page