“I was definitely getting a bit nervous, but trying not to really show any emotion and just to keep fighting and doing the best that I could really,” Anisimova said. “I really reset and told myself to really go for it in the tiebreak…I feel like I did a good job in the end.”

As for Sabalenka, the desire to avoid another meltdown like the one she had at Roland Garros helped her.

“In some moments I was reminding myself, ‘Come on, it’s the quarterfinal of Wimbledon, you cannot give up, you cannot let the emotions just take over you and lose another match.”

Each woman has been tested: Anisimova has won two three-setters, and an 11-9 tiebreaker; Sabalenka has won one three-setter, and three tiebreakers—increasing her tiebreaker win streak to 14 in a row. Experience-wise, Anisimova will be playing her first Slam semifinal in six years. But that doesn’t necessarily give Sabalenka an edge; a lot of her experiences at this stage of the Slams have been painful ones.

I could see Anisimova getting off to a fast start, and the crowd cheering on her explosive winners. If so, Sabalenka won’t like that: She’s not a fan of having opponents take the initiative from her, or of crowds being against her. It will be up to her to keep calm, and it will be up to Anisimova to avoid letting “I’m about to be in the Wimbledon final” nerves get the better of her. Winner: Sabalenka