Serena looked a little weary in the first set and but by the second set she was able to build a commanding lead and won the set and the match.
Ekaterina played very well and Serena had to play well to beat her. Serena speed round court the was probably the key difference between them .
Elsewhere Caroline Wozniacki beat Sabine Liscki in three sets. This was a very competitive match and I thought Sabine was going to win bit Caroline just seem to have a little more in the tank.