Kvitova puts on confident display in Birmingham
BIRMINGHAM, England — Two-time Wimbledon champion Petra Kvitova produced her most encouraging result since returning from a knife attack to advance to the quarterfinals of the Aegon Classic, a Wimbledon warmup tournament. The left-handed Czech hit 25 winners with 11 unforced errors as she easily beat fellow wild card Naomi Broady of Britain 6-2, 6-2