BBC Sport looks at how the WTA Finals, which are being held in Saudi Arabia for the first time, are unfolding - and what the reaction has been.

Zheng Qinwen cruised to a 6-1, 6-1 win over Jasmine Paolini to reach the semifinals of the WTA Finals on Wednesday. Zheng needed just over an hour to defeat Paolini in the match that decided the final ...