Spain's Garbine Muguruza rose three places to 13th in the WTA rankings on Monday after winning the Dubai Open at the weekend. Former French Open and Wimbledon champion Muguruza ended a two-year title drought on Saturday by beating unseeded Czech Barbora Krejcikova. Belgian Elise Mertens, who lost in the semi-final to Muguruza, moves above Britain's Johanna Konta to 17th.