"It feels great," she told press when asked about returning to the semifinals. "It's a tournament that I love. I love being here. I love playing in this incredible stadium."
Wozniacki had spent most of the spring struggling with an ankle injury that ruled her out of the clay court season, but it was Sevastova who had her own ankle issues on Tuesday night. Rolling it just two games into the match, the Latvian stuggled to win games after getting injured.
"For sure it was affecting my play, but I'm not a person that likes to retire during a match, so I just tried my best," Sevastova said after the match.
"But the movement was different. It was harder to move. And also on serve it was harder to get out of the serve."
Sevastova managed to get on the board late in the second set, forcing the Dane to serve out her first Grand Slam semifinal in exactly two years.
"I think I was just extra focused, because I saw her fall in that second game," Wozniacki said. "She stood up, and I knew if she can still walk and still put weight on it and stuff then she's going to go obviously more for her shots and stuff like that.
"But I thought, cool. I kept serving well and made her run. I'm pleased with how I managed to keep composed."
Starting the tournament down at No.74, Wozniacki has looked stronger with each performance, taking out two Top 10 players in Svetlana Kuznetsova and Madison Keys, and will face an old foe in No.2 seed Angelique Kerber, who is aiming to earn the No.1 ranking Wozniacki herself held for 67 weeks.
"I think when you're a little kid and you don't know what anything really means, everybody knows what it means to be the best in the world and everybody knows what it means to be No. 1.
"Obviously being No. 1 in the world is extremely special, and I'm sure Angie is feeling it, too. I'm sure that she is going to do everything to get that ranking. She's been playing really well this year.
"It's something that very few people in the world has ever achieved. I mean, how crazy is it to say that you're the best in the world at something? Doesn't matter if tennis, football, being a lawyer, whatever it is. It's really special.
"Right now, for me, being 70-something, it doesn't really mean much to me. I still believe and feel like I'm one of the top players and grinding my way back, so that's why I'm saying for me the ranking is just a number right now, because I'm not No. 1 and there is a long way for me right now to get back to No. 1.
"But I'm doing my best to just play my best tennis and have fun with it. It's really all that I can do right now."
"I have seen the results and she's been doing great. I'm really happy for her. She's a hard worker.
"But to be honest, when I was injured I didn't watch one match. I don't know. I have to watch tapes. Obviously I have had tough matches against her in the past. She's a great competitor. She looks fit, so it's going to be a tough one."