Katie Boulter’s Japan Open run halted after reclaiming British No 1

What happened
Katerina Siniakova, the 12-time grand slam doubles winner, will play in the 11th singles final of her career on Sunday
Summary assembled by rule from the sources below

Katerina Siniakova, the 12-time grand slam doubles winner, will play in the 11th singles final of her career on Sunday
Summary assembled by rule from the sources below