John Mackay (rugby league)
John Mackay is a former professional rugby league footballer who played in the New South Wales Rugby League (NSWRL) competition. His playing career primarily occurred in the 1970s. While not achieving widespread international fame, Mackay was a recognized player within the Australian domestic league system. He was known for playing in the forwards, typically as a prop or second-rower. Information on his specific club affiliations, individual achievements, and precise dates of his playing career is currently limited without further research.