BRISBANE, Australia, Jan 5 (AFP): American superstar Serena Williams demolished Russia's Anastasia Pavlyuchenkova 6-2, 6-1 in just 50 minutes to win the Brisbane International Saturday.

Third-seeded Williams served notice that she will be the one to beat at this month's Australian Open with a ruthless display against Pavlyuchenkova, the world number 36.

She took control at 2-2 in the first set when she went on a run of seven straight games and never looked like losing against an increasingly demoralised opponent, who had no answer to Williams' power and aggression.

Williams sent down nine aces and won 91 percent of her first serves, blasting 24 winners past Pavlyuchenkova, who looked shell-shocked at times with the pace of the American's groundstrokes.