Sabalenka downs Muchova to kick-start WTA Finals campaign

Aryna Sabalenka kicked off her quest for an elusive first WTA Finals win with victory in her opening match at Indian Wells. The former world number one defeated Karolina Muchova 7-6 (7-2), 7-5 to boost her hopes of going one better than last year's final loss to Elena Rybakina.

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