Michael Alan Katsidis (English: kat-SEE-deez; Greek:Mιχάλης Κατσίδης; born 15 August 1980) is an Australian professional boxer. He is a two-time former WBOinterimlightweight champion and world title challenger whose crowd-pleasing, all-action fighting style has often drawn comparisons with the late Arturo Gatti.
Katsidis made his professional debut on 1 December 2001 by stopping Danny Wilson in the third round for the Queensland State lightweight title. In his second fight on 9 March 2002, he won a twelve-round unanimous decision over James Swan for the Australian lightweight championship. He would go on to score another nineteen wins, nearly all by knockout, while amassing a further three lower-level titles: the Australian light-welterweight, WBO Asia Pacific lightweight and IBF Pan Pacific lightweight championships, respectively.
An Aussie boxing feud has erupted in stunning fashion, with former interim world champion Michael Katsidis accusing Jim Kambosos - father of boxer George - of threatening to have him 'clipped'.