 Following the season he was selected for the 1990 Kangaroo Tour, coming into the test team for the winning 2nd and 3rd Ashes Tests against Great Britain before playing in the two tests against France.After failing to hold his test place in 1991, Mackay was selected for the first two tests against Great Britain during the Lions 1992 tour of Australasia but missed the last match of the series through injury.After playing in a World Cup qualifying match against Papua New Guinea in Townsville, Mackay was used as a replacement in the Dragons 8-28 Grand Final loss to the Brisbane Broncos and missed a place in Australia's World Cup Final winning team.