World No. 1 Victoria Azarenka has pulled out of the Premier tournament in Rome after her 6-1, 6-2 opening-round victory over Shahar Peer with right shoulder trouble. Azarenka was rumored to have shoulder problems last weekend in Madrid, but after Serena Williams overwhelmed her in the final, she refused to discuss the issue. As a result of Azarneka's pullout, Dominika Cibulkova advances to the quarterfinals.