Keys overcomes serve demons to win latest Australian Open warm-up

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. She improved in the second, breaking twice and converting her third match point to reach the quarter-finals after an 85-minute workout on court. "Experience helps get through the tricky moments," Keys said.