“It doesn’t give me any benefit to our match tomorrow, because what happened happened, and the past is in the past,” said Andreeva. “Tomorrow is going to be a new day, new match, new conditions, new country. Everything is different. I’m going to try my best to prepare in the best way. I think it’s going to be an entertaining match, and we’re just going to see who is going to be better tomorrow.”

When Andreeva bettered Swiatek 6-3, 6-3 in the Dubai quarterfinals, she delivered 10 aces and capitalized on half of her break points. As Swiatek will no doubt remember, she went 1-for-8 on her own break points, including missing out on three in the second game. That might have been a mini turning point. Overall, Swiatek tallied an untidy 33 unforced errors, or almost two per game.

“For sure, there is a lot to analyze and to learn from,”said Swiatek, who was pushed hard by Andreeva in their only other matchup last year in Cincinnati.

Swiatek wasn’t a fan of the balls used in Dubai, saying this week in Indian Wells that they felt like “potatoes.” But as tricky as the conditions in Indian Wells have been this edition — with fluctuating temperatures and heavy winds — the five-time Grand Slam champion handled them superbly well. She was already comfortable with the higher bouncing hard court. Swiatek only dropped 12 games en route to the semifinals.