Top-seeded Angelique Kerber struggled with a knee injury during her 6-3 7-6 (7-3) loss to Elina Svitolina in the semi-finals of the Dubai Tennis Championships.
Kerber would have reclaimed her world No.1 ranking if she won the Dubai title, but that seemed of secondary importance after her loss.
"I'm not thinking about this," Kerber said. "For me it's really important to be healthy."
Kerber was not sure what caused the injury.
"I don't know what's with my knee now, but I feel pain a little bit," the German player said. "At the end, I tried my best. This is how I am."
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Svitolina beat Kerber for the third straight match and advances to play 10th-seeded Caroline Wozniacki of Denmark, who earlier reached her second consecutive final of the season with a 6-3 6-4 semi-final win over Latvian Anastasija Sevastova.
Svitolina's victory increased her winning streak to 11 matches. The Ukrainian won the Taiwan Open earlier this month for a fifth career title.
Wozniacki, a losing finalist at the Doha tournament last week, is seeking her 26th career title.
"Very happy how I have managed to get through these two weeks, because it's been very tiring mentally," she said.
"The fact that I have just been staying in there and keep grinding, I'm kind of proud of that."
The last time she reached back-to-back finals was at the 2014 US Open and Tokyo tournaments, but lost both.
Wozniacki won the Dubai title in 2011 and has reached at least the semifinals in six of the seven years she's played at the event, compiling a 22-5 record.
"I love playing here," she said. "To have a finals here again, it just feels good."
