Elena Rybakina has withdrawn from the Pan Pacific Open in Tokyo, Al Jazeera English reported. The outlet described her as the world number one. It said she pulled out before her quarterfinal match. Al Jazeera English reported that the reason given for the withdrawal was a neck injury. It also reported that she expects to return for the WTA Finals in Indian Wells, which it said are scheduled for next month. How serious the injury is and how long recovery is expected to take is not yet known. Who advances in her place in the quarterfinal is also not yet known.