Record-chasing Serena staying focused

SERENA WILLIAMS is determined not to enjoy her incredible tennis success too much – so she can have more of it.

The world number one made it 13 Grand Slam singles titles on Saturday when she beat Vera Zvonareva 6-3 6-2 to retain her Wimbledon crown.

Williams’ fourth singles title at the All England Club took her above mentor Billie Jean King into sixth outright on the all-time list, with only Margaret Court, Steffi Graf, Helen Wills, Chris Evert and Martina Navratilova above her.