Sabalenka went 0-30 up on Keys’ serve, she got a little lucky after the ball went off the net and over Keys’ racquet.
But the American powered back with two winners.
Sabalenka earned another break chance, Keys hit another ace but Sabalenka kept on the attack and forced a mis-hit that went out for another break.
Keys then sent a diving serve that dropped and went wide for deuce.
Finally Sabalenka got her break with two straight winners.
She wore down Keys. How will the American respond.
Sabalenka is serving at 2-1 up in the second set. Keys won the first set 6-3.