 Internationally, he won a gold medal with Team Canada at the 2008 World Junior Championships while earning tournament MVP and Best Goaltender honours.Mason grew up in Oakville, Ontario, playing mostly A hockey until his Bantam year, when he moved up to the AAA level with the Oakville Rangers of the OMHA's South Central AAA League.He was drafted after his minor midget season with Oakville by the London Knights of the OHL in the 11th round of the 2004 OHL Priority Selection.