World number one Serena Williams has racked up her 50th win of the year after defeatingt Klara Zakopalova of the Czech Republic to reach the Swedish Open tennis final.
Williams showed little mercy as she swept to a 6-4 6-0 victory to set up a clash with home player Johanna Larsson in the final.
French Open winner Williams will be contesting her 69th final at the age of 31.
