Ukrainian tennis player Marta Kostyuk logs onto our Zoom meeting from an Uber in Miami. She’s on her way to a panel about on-court fashion, something the 22-year-old become known for in her nine ...

And then there's Marta Kostyuk. The 17-year-old Ukrainian and her little sister Zoryana have been keeping their competitive spirit alive, to say the least: The rules were simple: slam the pad ...

Marta Kostyuk closed out her third-round win at the Miami Open with one of the most unexpected shots of the season -- an ...

A TENNIS star won a match with an underarm serve that aced her opponent. Ukrainian Marta Kostyuk progressed to the Miami Open Round of 16 with a 6-2 6-1 win over Russian Anna Blinkova. Kostyuk ...

SAN DIEGO (AP) — Unseeded Katie Boulter of England capped a run of upsets to win the San Diego Open singles title with a 5-7, 6-2, 6-2 victory over sixth-seeded Marta Kostyuk of Ukraine on Sunday.