 Complete the following phrase:  Charlton covered a diverse range of major sports events. His commentary was described by sports journalist Martin Flanagan as slightly ornate but with sincerity that compelled attention, and delivered with elegant diction. He was involved in commentary for 5 Olympic Games and 2 Commonwealth Games. His many years of tennis broadcasts included numerous Davis Cup tournaments and Rod Lavers attainment of his second Grand Slam in the 1969 U.S. Open final. In motor sport, he covered Jack Brabhams Formula One World Championship win at the 