
Having won her last two meetings with Andreeva comfortably, Belarusian Sabalenka wasted little time getting to work as the Australian Open champion cranked up her big shots to go ahead 3-1 before her serve came undone in the opening set.
A suddenly out-of-sorts Sabalenka called the trainer out and had medication for illness after the 17-year-old Andreeva surged to a 5-3 lead and sensed a real opportunity to cause a massive upset on the biggest stage.
But Sabalenka regrouped to force a tiebreak where the 2023 semifinalist seized the advantage with a stunning drop shot on set-point, but appeared to struggle physically again at the start of the next set.
She got a time violation for taking too long between games as she crouched to her knees to recover at one point, and looked agitated at 4-2 down, eventually allowing her Russian opponent to take the match into a decider.
After an exchange of breaks, the pair were locked in a high-quality battle that thrilled fans on Court Philippe Chatrier but Andreeva held her own and broke Sabalenka in the final game to complete a memorable victory on her second match point.