Jelena Ostapenko is through to the final of the Seoul Open after a tight three-set battle with Thailand's Luksika Kumkhum.
Kumkhum stunned the French Open champion by winning the opening set 6-3 before Ostapenko rallied to win the next two sets 6-1, 6-3.
Ostapenko will face Brazil's Beatriz Haddad Maia in Sunday's final after she ousted Richel Hogenkamp 6-1, 7-6 (7) in Saturday's other semifinal.
It will be Haddad Maia's first WTA tour final.