Carina Witthöft of Germany returns the ball to Caroline Wozniacki of Denmark (unseen) during their singles second match at the 2018 WTA Qatar Open in the capital Doha


Petra Kvitova of the Czech Republic returns the ball to Agnieszka Radwanska of Poland (unseen), during their singles second match at the 2018 WTA Qatar Open in the capital Doha


Alize Cornet of France returns the ball to Karolina Pliskova of the Czech Republic (unseen) as they compete in their singles match during the second round of the Qatar Open tennis competition in Doha


Karolina Pliskova of the Czech Republic returns the ball to Alize Cornet of France (unseen) as they compete in their singles match during the second round of the Qatar Open tennis competition in Doha