Ostapenko rallies after Adelaide International fright

But the world No.7 responded emphatically to log a 4-6 6-1 6-1 first-round win.

Ostapenko, the tournament's eighth seed, was joined in the second round by sixth seed Diana Shnaider from Russia.

Shnaider, the world No.13, defeated Czech qualifier Katerina Siniakova 6-3 0-6 6-0.

America's world No.20 Madison Keys produced a powerful performance to account for Brazil's Beatriz Haddad Maia.

Keys, who captured the Adelaide title in 2022, was dynamic on return of serve in her 6-2 6-1 triumph and Maria Sakkari from Greece cruised past Czech Linda Noskova 6-3 6-3.