WTA Insider on Twitter: "What an effort from Kiki Bertens. Has played every week since US Open, arrived in Shenzhen @WTAFinals on Monday after playing the Zhuhai final, gets the call to
![Kiki Bertens vs. Belinda Bencic | 2019 Porsche Tennis Grand Prix Second Round | WTA Highlights - YouTube Kiki Bertens vs. Belinda Bencic | 2019 Porsche Tennis Grand Prix Second Round | WTA Highlights - YouTube](https://i.ytimg.com/vi/lduwpnVFLLA/maxresdefault.jpg)
Kiki Bertens vs. Belinda Bencic | 2019 Porsche Tennis Grand Prix Second Round | WTA Highlights - YouTube
![Dutch professional tennis player Kiki Bertens competes against Australian professional tennis player Ashleigh Barty during a group match of WTA Finals Stock Photo - Alamy Dutch professional tennis player Kiki Bertens competes against Australian professional tennis player Ashleigh Barty during a group match of WTA Finals Stock Photo - Alamy](https://c8.alamy.com/comp/2ABDANN/dutch-professional-tennis-player-kiki-bertens-competes-against-australian-professional-tennis-player-ashleigh-barty-during-a-group-match-of-wta-finals-2ABDANN.jpg)