WOMEN’S world number one Simona Halep wilted in 33-degree heat and crashed out of Wimbledon in the third round Saturday.

Fresh off winning her first Grand Slam title at the French Open, so sure she had figured out how to overcome the big-moment anxiety that was so problematic for so long, Halep chastised herself as “unprofessional” after bowing out at the All England Club, dropping the last five games while being beaten 3-6, 6-4, 7-5 by Hsieh Su-wei of Chinese Taipei.

“I just was too negative to myself, talking too much. I think because I was tired, because I’m tired, I couldn’t stay focused for every ball,” Halep said. “Mentally, I was tired. Also physically, I feel tired. My muscles are gone.”

For the first time in Wimbledon history, none of the top five women’s seeds reached the round of 16. Only one of the top 10 seeds will be in action in Week 2: No. 7 Karolina Pliskova. The only past champion at the grass-court tournament left is Serena Williams. Only two other women among the 16 left even own a Grand Slam singles title: Angelique Kerber has two, Jelena Ostapenko one.

“I’m not surprised anymore,” said 2017 French Open champion Ostapenko, a 6-0, 6-4 winner against Vitalia Diatchenko, who eliminated five-time major champion Maria Sharapova in the first round. “Because every day, something strange is happening in the draw.”

Far less so in the men’s bracket, although No. 4 seed Alexander Zverev did depart Saturday with a 7-6 (2), 4-6, 7-5, 6-3, 6-0 loss to Ernests Gulbis, a Latvian ranked 138th who is the first male qualifier since 2012 to reach Wimbledon’s fourth round.

Gulbis already has been a major semifinalist — he made it that far at the 2014 French Open, but his ranking slid because of a series of injuries.(SD-Agencies)