Davis Cup quest keeps Hewitt on the ball TENNIS: Conceding he is one injury away from retirement, Lleyton Hewitt says the fire still burns ahead of his 18th Australian Open and a Davis Cup campaign he fought six years for. Fresh from winning the John Newcombe Medal as Australia's top tennis performer for the year, 32-year-old Hewitt says the thought of claiming big scalps at grand slams and Davis Cup success are driving him through another tough pre-season.