Serena Williams might be feeling slightly anxious about her first opponent in week two at Wimbledon.
The winner of 13 grand slam titles has a fourth round meeting tonight against Yaroslava Shvedova, a wildcard entry from Kazakhstan, who raised eyebrows in her previous match against Sara Errani.
Shvedova beat the Italian 6-0 6-4, winning the first set without losing a point - that's 24 straight points - and a first in a grand slam event.
The defending women's champion Petra Kvitova faces the Italian Francesca Schiavone.
