Wimbledon: Barbora Krejcikova and Katerina Siniakova move to the final
Katerina Siniakova stuns Sara Errani to reach Ericsson Open semi-finals - Eurosport
Naomi Osaka changes coach for second time this year
Prague. Katerina Siniakova will play with Barbora Strycova in the quarterfinal. - Tennis Time
French Open 2019: Naomi Osaka's claycourt limitations, weight of expectations finally catch up in straight-set loss to Katerina Siniakova - Sports News , Firstpost
Katerina Siniakova reaches her first career final at WTA level in Bastad - UBITENNIS
Former world number one Osaka changes coach for second time this year
Naomi Osaka changes coach for second time in 2019 | The Express Tribune