Fourth-seeded Angieszka Radwanska has won her 12th match in a row with a 6-3, 6-1 victory over Britain's Heather Watson in the third round at the Australian Open on Friday.

Radwanska won tournaments in Auckland and Sydney - nine matches in a row - before coming to Melbourne Park. Her 6-0, 6-0 win over Dominika Cibulkova in the Sydney International final was the first "double bagel" in a WTA final since November 2006.

The Polish player, who received treatment for what appeared to be a blister on the small finger of her right hand in the second set, will take on the winner of Friday's later all-Serbian match between Ana Ivanovic and Jelena Jankovic in the fourth round.