2011 Brasil Open – SinglesJuan Carlos Ferrero was the defending champion; however, he chose not to defend his title due to knee and wrist injuries.Nicolás Almagro claimed the title by defeating Alexandr Dolgopolov 6–3, 7–6 in the final.SeedsThe top four seeds receive a bye into the second round. Nicolás Almagro Albert Montañés ' Thomaz Bellucci ' Alexandr Dolgopolov ' Juan Ignacio Chela ' Tommy Robredo ' Potito Starace ' Victor Hănescu ''''