Norfolk beat Wagner 6-2 7-6 (7-4) to win the Australian title in 2010
Two-time Paralympic wheelchair tennis champion Peter Norfolk has set his sights on his fifth Australian Open quad singles title.
Norfolk, 50, who has won 18 major titles, will play fellow Briton Andrew Lapthorne in the first round on Wednesday at Melbourne Park.
Norfolk said: "Grand Slams are the pinnacle. I want to win again and I believe I have more in me.
"The drive to not lose keeps me motivated, the challenge is winning."
The Quad singles competition consists of three round-robin matches, where Britons Norfolk and Lapthorne, along with Americans David Wagner and Nick Taylor will play each other over the next three days, with the top two going through to Saturday's final.
Norfolk and Lapthorne, who were the first all-British pairing to win the Camozzi Doubles Masters in Italy, will then team up in the quad doubles as they bid to dethrone American defending champions Taylor and Wagner.
Andy and I will rise to the challenge and try and become the first all-British pairing to win a Grand Slam wheelchair doubles title.
Paralympic wheelchair tennis champion Peter Norfolk
Norfolk says he is relishing the test.
"It's special to play with Andy at a Grand Slam, it's his first Grand Slam and he didn't find out he was in until quite late," said the Hampshire-based athlete.
"But Andy and I will rise to the challenge and try and become the first all-British pairing to win a Grand Slam wheelchair doubles title."