Raducanu advances as Muguruza, Sakkari shown the door in Madrid Open

Garbine Muguruza's unhappy relationship with the Madrid Open continued when the No. 7 seed crashed out of the Round of 32 after a 6-3, 6-0 defeat to Ukraine's Anhelina Kalinina.

Kalinina had already shown she is an effective clay-court player by defeating Sloane Stephens of the United States and she gave Muguruza few options in a match that lasted just 81 minutes.

The Spanish player was hampered by a calf problem and especially struggled in the second set with a heavy strapping on her lower leg, Xinhua reports. Muguruza wasn't the only seed to go out of the tournament with sixth seed American Danielle Collins suffering a heavy 6-1, 6-1 defeat to Canadian Bianca Andreescu.

Fourth seed Maria Sakkari is also out of the tournament after failing to hold onto a first-set lead against Daria Kastakina. After taking the first set 6-3, Sakkari lost the second set 6-3 and was overwhelmed 6-1 in the decisive set.

US Open champion Emma Raducanu of Britain continued her adaptation to clay with a convincing 6-2, 6-1 win over Ukraine's Marta Kostyuk.

"I'm definitely very happy with my performance. Marta's a great opponent, we've played several times in the juniors and once last year. I knew it was always going to be a really tough battle so I went out there trying to be really aggressive and it definitely paid off," said Raducanu after her match.