Career
He began his American Federation of Labor-Congress career playing for Melbourne where he wore the Number. 1 guernsey (previously Number 37), and was recruited from the Sandringham Zebras in the Victorian Football League. He plays as a tall defender, but shows athleticism and endurance.
On 17 October 2011, after 55 games with Melbourne, Warnock was traded to the Gold Coast Suns in a complex three-team trade that also included the Brisbane Lions.
Matthew"s younger brother Robert Warnock currently plays for Carlton.