23:47 CET - Listen to Pegula's post-match comments below.
23:00 CET - Jessica Pegula (29) has defeated Irina-Camelia Begu (32) to reach the quarter-finals in Charleston. The match finished 7-5, 4-6, 6-4. She will next play Paula Badosa (25).
22:54 CET - Our men's FlashMoment of the day comes all the way from Houston, Texas. Take a look at veteran John Isner (37) in his finest form.
22:48 CET - Out WTA FlashMoment of the day comes courtesy of Jessica Pegula (29) in her match against Irina-Camelia Begu (32) in Charleston. Look at those reflexes!
20:53 CET- World number five Ons Jabeur (28) marches on in Charleston to the quarter-final stage after beating Caroline Dolehide (24) 6-3, 7-5. Jabeur will meet Anna Kalinskaya (24) in the last eight.
20:47 CET - Spain's Bernabe Zapata Miralles (26) has upset world number 12 Hubert Hurkacz (26) in Estoril. The match ended 6-7, 6-4, 6-2.
19:19 CET - Victoria Azarenka (33) has been dumped out at Charleston by Anna Kalinskaya (24) 6-4, 7-5(5).
18:50 CET - Paula Badosa (25) has stormed past Diana Shnaider (19) 6-1 6-3 to book her place in the Charleston quarter-finals.
17:15 CET - Daniel Evans (32) has moved into the quarter-finals in Marrakech after beating Alexei Popyrin (23) with ease 6-1, 6-3.
15:59 CET - See what Thiem had to say following his victory.
15:40 CET - Dominic Thiem (29) has made light work of Ben Shelton (20), thumping his American opponent 6-2 6-2 in a little over an hour.
14:01 CET - Meanwhile, the WTA event in Bogota is hitting its quarter-final stage. Check out the order of play here.
13:58 CET - The last-16 phase will begin later today in Charleston. You can see the full fixtures here and don't forget to check in with us on the Tennis Tracker for updates and highlights.
13:54 CET - The scandal and temporary disappearance of Peng Shuai (37) sent shock waves around the tennis world and led to the WTA suspending tournaments in China.
The governing body of women's top tennis events is now reconsidering its stance, however. Should finances trump principles? That's the question.
Read more about the story here.
9:34 CET - Iga Swiatek (21) says she believes that Wimbledon should have banned Russians and Belarusians from the tournament and that tennis should be doing more.
Read more about it here.
8:28 CET - Dominic Thiem (29) faces Ben Shelton (20) later today in Estoril in what should be a really intriguing contest. You can follow the match at Flashscore at 14:30 CET.
8:26 CET - See what Rogers had to say following her win below.
8:20 CET - We will start today with some results overnight in Charleston. Shelby Rogers (30) beat Caty McNally (21) in just under three hours in what was a thrilling contest, with the final score 6-7(4) 7-5 6-1.
She will face Belinda Bencic (26), who dismantled Katherine Sebov (24) 6-0 6-3.