WIMBLEDON, England — Petra Kvitova announced herself to Serena Williams with high-pitched squeals and forceful fist pumps and with a tennis game of varied pace marked by volleys and lobs and, stunning to many, an early service break and an advantage over the world's top player.
But Williams has something Kvitova doesn't have.
Kvitova has a serve but not The Serve. Not the consistently angry-seeming first shot that is blasted with both power and purpose. Former player Pam Shriver calls Williams' serve possibly the best shot in the history of women's tennis.
Williams' serve pulled her out of a little trouble Thursday and put her in her sixth Wimbledon...