STUTTGART, Germany — Top-ranked Naomi Osaka came from behind in the final set to beat Donna Vekic 6-3, 4-6, 7-6 (4) on Friday and reach the semifinals of the Porsche Grand Prix.
Osaka easily won the first set before Vekic looked to have seized control of the match by winning the second and building up a 5-1 lead in the third.
But Osaka, who twice was two points from defeat, regrouped to win five straight games and force the tiebreaker, which she wrapped up after two early mini breaks. The win sends her into her first semifinal since winning the Australian Open in January.