 Complete the following phrase:  Rigitano was accepted as a professional by the World Professional Billiards and Snooker Association WPBSA in 1983. In the 198384 snooker season he defeated Marcel Gauvreau 96 in the first round of the 1983 Canadian Professional Championship, before losing 49 to Bernie Mikkelsen. In his four-player pre-qualifying group for the 1984 International Masters he progressed, recording 20 wins against both Dennis Hughes and Paul Medati, and 21 against Bill Oliver. In the next group round he played Jimmy White and Frank Jonik, with White winning the group and qualifying for the main event. At the 