Simona Halep, world number one in the Women's Tennis Association (WTA) rankings, came from a set down to beat France's Oceane Dodin in the second round of the Miami Open.
Naomi Osaka continued her superb run of form by dumping out tennis legend Serena Williams in the first round of the Miami Open.
Belgium's Kirsten Flipkens earned victory in the first round of the Miami Open at the Crandon Park Tennis Center.
Canada's Eugenie Bouchard progressed to the second round of qualifying at the Miami Open with a straightforward win at the tennis centre at Crandon Park.
Juan Martín del Potro ended Roger Federer's 17-match winning streak to win the men's singles title whilst unseeded Naomi Osaka claimed the women's crown at the Indian Wells Masters in California.
Swiss tennis legend Roger Federer increased his winning run in 2018 to 17 by beating Borna Ćorić of Croatia in the semi-finals of the Indian Wells Masters in California.
Naomi Osaka and Daria Kasatkina each produced shock upsets to stun Simona Halep and Venus Williams in the Indian Wells Masters semi-finals in California.
Roger Federer equalled his best ever start to a season after beating South Korea's Chung Hyeon to reach the Indian Wells Masters semi-finals in California.
World number one Roger Federer eased into the quarter-finals of the Indian Wells Masters with a straight-sets victory over Frenchman Jeremy Chardy in California.
Caroline Wozniacki's pursuit of the world number one ranking was put on hold as she was beaten in straight sets by Russia's Daria Kasatkina at the Indian Wells Masters in California.
Venus Williams overcame sister Serena to book their place in the last 16 of the Indian Wells Masters in California.
Former world number one Novak Djokovic lost to world number 109 Taro Daniel in his second-round tie at the Indian Wells Masters in California.
Americans Serena and Venus Williams will play each other in the third round of the Indian Wells Masters in California after seeing off competition in their matches today.
Third seed Garbine Muguruza suffered a shock second round defeat to United States' world number 100 Sachia Vickery today at the Indian Wells Masters in California.
Serena Williams and Victoria Azarenka each made winning returns to the Indian Wells Masters with comfortable first round victories in California.