INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Marta Kostyuk of Ukraine serves in her singles match against Linda Noskova of Czechia during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Marta Kostyuk of Ukraine reacts in her singles match against Linda Noskova of Czechia during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Marta Kostyuk of Ukraine returns a shot in her singles match against Linda Noskova of Czechia during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Luke Hales/Getty Images for WTA)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Linda Noskova of Czechia celebrates defeating Marta Kostyuk of Ukraine in their singles match during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Linda Noskova of Czechia celebrates defeating Marta Kostyuk of Ukraine in their singles match during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Linda Noskova of Czechia celebrates defeating Marta Kostyuk of Ukraine in their singles match during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Linda Noskova of Czechia celebrates defeating Marta Kostyuk of Ukraine in their singles match during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)

INDIAN WELLS, CALIFORNIA - NOVEMBER 08: Linda Noskova of Czechia celebrates defeating Marta Kostyuk of Ukraine in their singles match during day one of the FAGE WTA Finals at Indian Wells Tennis Garden on November 08, 2026 in Indian Wells, California. (Photo by Katelyn Mulcahy/Getty Images)