In pictures: Third round of Dubai Duty Free Tennis Championships

Teenager Catherine Bellis claimed a stunning 6-4 2-6 6-2 victory over fourth seed and former champion Agnieszka Radwanska to reach the quarter-finals of the Dubai Duty Free Tennis Championships.
643653436.jpg
1 of 12
Lauren Davis of United States serves against Ekaterina Makarova of Russia during day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643781696.jpg
2 of 12
Catherine Bellis of United States plays a forehand during her match against Agnieszka Radwanska of Poland on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643834596.jpg
3 of 12
Caroline Wozniacki of Denmark celebrates a point during her match against Kateryna Bondarenko of Ukraine on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643749320.jpg
4 of 12
Qiang Wang of China plays a forehand during her match against Kristina Mladenovic of France on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643709078.jpg
5 of 12
Elina Svitolina of Ukraine plays a backhand during her match against Christina McHale of United States on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643834568.jpg
6 of 12
Caroline Wozniacki of Denmark changes trainers during her match against Kateryna Bondarenko of Ukraine on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643743250.jpg
7 of 12
Angelique Kerber of Germany in action during her match against Monica Puig of Puerto Rico on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643776484.jpg
8 of 12
Agnieszka Radwanska of Poland during her match against Catherine Bellis of United States on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643681268.jpg
9 of 12
Kristina Mladenovic of France plays a forehand during her match against Qiang Wang of China on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643834510.jpg
10 of 12
Kateryna Bondarenko of Ukraine plays a forehand during her match against Caroline Wozniacki of Denmark on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643709064.jpg
11 of 12
Christina McHale of United States plays a forehand during her match against Elina Svitolina of Ukraine on day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)
643653444.jpg
12 of 12
Ekaterina Makarova of Russia plays forehand against Lauren Davis of United States during day four of the WTA Dubai Duty Free Tennis Championship at the Dubai Tennis Stadium on February 22, 2017 in Dubai, United Arab Emirates. (Getty Images)