Martina Navratilova said it “takes a genius” to hit a one-handed backhand. But the shot made famous by of the likes of Roger Federer, Justine Henin and Ken Rosewall is heading for extinction. Martina Navratilova said it “takes a genius” to hit a one-handed backhand. But the shot made famous by of the likes of Roger Federer, Justine Henin and Ken Rosewall is heading for extinction. Sport / Tennis Sydney Morning Herald – Latest News