Danielle Collins picked up back-to-back tournament wins this time at the Charleston Open with a comfortable 6-2 6-1 victory over Daria Kasatkina in South Carolina.

Danielle Collins picked up back-to-back tournament wins this time at the Charleston Open with a comfortable 6-2 6-1 victory over Daria Kasatkina in South Carolina.

After winning the Miami Open last week, Collins earned her 13th successive victory in style as she dropped just three games in her latest triumph.

The American, who moved up to 15th in the world rankings, needed just 77 minutes to dismiss her opponent without facing a break point in the whole of the contest.

Collins said: "I had a lot of matches in Miami and I had a lot of matches here.

"I had, at one point in this tournament, two matches in one day, which is not easy to pull off. I don't know if I've done that before as a professional. I feel like the last time I did that was like in 12-and-unders.

"So to be able to physically battle and push myself to a new limit gives me a lot of confidence. I've been so happy to be, obviously, playing at the level that I've been playing, but to be able to back it up two weeks in a row has just been fantastic."

Meanwhile, Hubert Hurkacz overcame Pedro Martinez 6-3 6-4 in the Millennium Estoril Open final to lift his eighth ATP Tour title and Matteo Berrettini beat Roberto Carballes Baena 7-5 6-2 in the final of the Grand Prix Hassan II to claim his first title at the event.

Ben Shelton landed his second career ATP Tour title after beating defending champion Frances Tiafoe 7-5 4-6 6-3 in the final of the US Men's Clay Court Championship.

Home favourite Camila Osorio toppled number one seed Marie Bouzkova 6-3 7-6(5) in the final of the Copa Colsanitas to land her second Bogota title.