The Pole, back from injury and gearing up for her French Open title defence next month, and world number two Sabalenka traded powerful baseline blows before Swiatek earned a second breakpoint at 4-3.

She whipped a superb forehand down the line to go 5-3 up before easily holding serve to clinch the first set on her second set point.

Swiatek, fit again following a rib injury that forced her to withdraw ahead of the Miami Open and Billie Jean King Cup qualifiers after she hurt herself during her run to the Indian Wells semifinals last month, broke her opponent again in the first game of the second set.

Belarusian Sabalenka started to pile up unforced errors and struggled with her serve at 2-0 before firing a cross-court forehand to hold.

But she could not break Swiatek back and the Pole held serve at 5-4 to seal her second title of the year.