WUHAN, China: Simona Halep reached the Wuhan Open quarterfinals on Wednesday despite being knocked dizzy and forced to retire from a doubles match a day earlier. The Romanian world No.5 beat Yaroslava Shvedova 6-3, 6-3 before detailing the heavy blow from a ball which left her with bruising to her head. Halep was struck by a shot fired from the baseline by her doubles partner Jelena Ostapenko, before retiring from the match on Tuesday evening. “She hit me with the ball, like 150 kilometers (90 miles) per hour. I was dizzy in the first moment, but then was much better,” Halep said. Halep said she was cleared by doctors to play, and will meet American number nine Madison Keys in the quarterfinals on Thursday. The Women’s Tennis Association doesn’t have the concussion protocols adopted by other sports to ensure players have fully recovered from blows to the head.