By HOWARD FENDRIC WIMBLEDON, England — For Serena Williams, the low point came in early 2011, when she spent hours laying around her home, overwhelmed by a depressing series of health scares that sent her to the hospital repeatedly and kept her away from tennis for 10 months. The high point came Saturday on Centre… Continue reading Serena Williams Defeats Agnieszka Radwanska to Win 5th Wimbledon