This one I'll always remember, says forgetful Serena

By Martyn Herman LONDON (Reuters) - Serena Williams' memory is not as powerful as her first serve these days, although with so many achievements to recall it would be churlish to hold that against the American great. "There's definitely some blurs between eight, nine and 10," the American who began her collection at the 1999 U.S. Open when beating Swiss Martina Hingis, told reporters. Williams won her 21st singles major a year ago by beating Spain's Garbine Muguruza at Wimbledon.