CANBERRA (AFP) - World number one Nick Matthew made an impressive start to his Australian Open defence when he beat South Africa's Steve Coppinger in straight games 11-7, 11-8, 11-9 in Canberra on Monday. Matthew only looked in trouble briefly in the third game when he was behind 5-9, but he stepped up the pace to storm home and wrap up a hard fought match. Matthew's win at last year's Australian Open signalled the start of a stellar 12 months for the Englishman, during which time he cemented his top ranking, won two Commonwealth Games gold medals and claimed his first World Open title. He showed against Coppinger, the world number 35 from Cape Town, that he is the one to beat again this year. "I knew it would be a tough match from the moment I saw the draw," Matthew said. Matthew now takes on Ong Beng Hee after the Malaysian overcame a slow start to beat New Zealand qualifier Martin Knight 5-11, 11-8, 11-9, 11-4. In the day's major upset, Dutchman Laurens Jan Anjema played some superb squash to down seventh seeded Frenchman Thierry Lincou.