Carlsbad pulls out of WTA tournament in Britain . Two -time Canadian Open winner has a back injury . Azarenka had only just recovered from the knee injury which forced her out of Wimbledon after the first round . She lost in the final of Carlsbad tournament to Samantha Stosur . Montreal Masters starts Monday with Victoria Azarenka cefending title .
Carlsbad pulls out of WTA tournament in Britain . Two -time Canadian Open winner has a back injury . She lost in the final of Carlsbad tournament to Samantha Stosur . Montreal Masters starts Monday with Victoria Azarenka cefending title .