World number five Daniil Medvedev was fined $5,000 for unsportsmanlike conduct and $4,000 for a visible obscenity.
Coco Gauff's emergence has caused quite a stir but is the scrutiny healthy for a 15-year-old?
Neither Novak Djokovic nor Roger Federer dropped a set in the US Open third round, as Daniil Medvedev won a controversial contest.
"The more you do this, the more I will win." Daniil Medvedev embraced the role of villain after his third-round win at the US Open.
An apparent feud with a spectator seemingly provided Novak Djokovic with the fuel he needed to defeat Denis Kudla in straight sets.
Amid doubts over the health of his left shoulder, Novak Djokovic withstood a spirited showing from Denis Kudla to reach the last 16.
Third seed Karolina Pliskova needed three sets to reach the fourth round but Serena Williams was dominant in progressing to the last 16.
Coco Gauff is the story of the first week of a grand slam once again as she prepares to face Naomi Osaka at Flushing Meadows.
The tennis world will be watching the future of the women's game when Naomi Osaka faces Coco Gauff, says Serena Williams.
Karolina Muchova failed to add the scalp of Serena Williams to her list as the 23-time major champion prevailed in straight sets.