After a scorching couple of days at SW19, handheld fans were replaced by umbrellas on a drizzly morning which delayed play on the outside courts by almost two hours.
But the roof was off on Centre Court in time for Sabalenka’s round two match with the sun beginning to peep through.
The three-time major winner made tough work of the opening set, struggling to find consistency and, while not playing badly, she was not clinical in crucial moments.
Having watched three of the top five seeds fall on day two, including French Open champion Gauff, Sabalenka would have welcomed a draw that was beginning to open up.
But eye rolling and shouting in frustration at times, she could not conjure a break point in the first set and instead went down a break when she double faulted at 5-5 to hand Bouzkova the lead.
That was met with a big cheer from a Wimbledon crowd desperate to back the Czech underdog, but they were equally as animated when Sabalenka let out a huge roar as she dug deep to force the tie-break.
A more straightforward second set followed as she secured the break in the fifth game, ramping up the aggression and executing each of her signature powerful groundstrokes with a loud grunt.
Sabalenka is clearly well-liked among the Wimbledon fans but a potential third-round meeting against Briton Raducanu may, for once, put them against her.
Elsewhere on day three, Donna Vekic and Leylah Fernandez became the latest seeds to fall. Croatian 22nd seed Vekic lost 6-1 6-3 to Spain’s Cristina Bucsa, while Canadian Fernandez, seeded 29, was beaten 6-2 6-3 by Germany’s Laura Siegemund.