Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769511

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769509

Russia's Daria Kasatkina tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769508

Russia's Daria Kasatkina reacts during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769505

Russia's Daria Kasatkina tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769504

Russia's Vera Zvonareva tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769503

Russia's Daria Kasatkina tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769502

Russia's Daria Kasatkina throws her racket during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769499

Russia's Daria Kasatkina tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769497

Russia's Vera Zvonareva tries to return the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769494

Russia's Daria Kasatkina reacts during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769492

Russia's Vera Zvonareva runs after the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769491

Russia's Vera Zvonareva runs after the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769490

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769489

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769487

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769486

Russia's Daria Kasatkina smiles during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769482

Russia's Daria Kasatkina reacts during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769480

Russia's Daria Kasatkina looks at the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769479

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769468

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769467

Russia's Vera Zvonareva rests during a break at the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769458

Russia's Daria Kasatkina looks at the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769456

Russia's Vera Zvonareva looks at the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769455

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769453

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769452

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769451

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769450

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769449

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769448

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769447

Russia's Daria Kasatkina looks at the ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769412

Russia's Vera Zvonareva returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Daria Kasatkina, in St. Petersburg, Russia.

01.02.2019#5769410

Russia's Daria Kasatkina returns a ball during the St. Petersburg Ladies Trophy tennis match against Russia's Vera Zvonareva, in St. Petersburg, Russia.

01.02.2019#5769399