There’s no doubt the world’s No. 1 ranked female tennis player has talent. Unfortunately, that talent wasn’t evident during her swift loss against Spain’s Garbine Muguruza during the second round of the French Open on Wednesday. Williams, the reigning champion, lost in straight sets, 6-2, 6-2, marking the first time she lost in the second-round of a major tournament since 1998’s Australian Open.

Williams blamed her uncharacteristically shoddy play on, well, just almost everything. She said at the news conference following the loss, “I don’t think anything worked for me today. Nothing, not a single thing.” She even blamed the color of her outfit. “I am never going to wear green in Paris again,” she said.

The only excuse she didn’t have for her poor play was the one thing everyone assumed would be  — that she may have had to meet her sister Venus, the 29th seed, in third-round play. Williams rebuffed assumptions that she worried about that, however, saying, “Venus wasn’t on my mind, to be honest, the chance of playing her next didn’t affect me at all.” Venus lost anyway, however, as well, so it didn’t matter.

Going forward, Serena said she plans “to work five times harder” to remain at the top of her game, which may mean less Instagram shots of her out with her friends at night and more of her practicing during the day.

In any case, the French Open continues, despite the string of high-profile upsets. Australian Open men’s champion Stan Wawrinka, Australian Open women’s champion Li Na and No. 13 seed Caroline Wozniacki all went out in the first round. Who could be next?