ADELAIDE: Defending Australian Open champion Madison Keys overcame some first-set serve wobbles to win her latest warm-up match for the opening Grand Slam of the year on Wednesday.
The 30-year-old American, who will be seeded ninth when the Australian Open begins on Sunday, beat Czech teenager Tereza Valentova 6-4, 6-1 at the Adelaide International.
Keys, who won in Adelaide last year before going on to lift her maiden major, served up seven double faults in the opening set against the 18-year-old.
