TOKYO — Elena Rybakina pulled out of the Pan Pacific Open on Saturday, citing a back problem a day after her quarterfinal victory clinched the last remaining spot for the WTA Finals.
The 2022 Wimbledon…

TOKYO — Elena Rybakina pulled out of the Pan Pacific Open on Saturday, citing a back problem a day after her quarterfinal victory clinched the last remaining spot for the WTA Finals.
The 2022 Wimbledon…