1986 Kangaroo Tour where he played 13 games on tour, including two tests against Great Britain and two against France, scoring 12 tries. He scored a record four tries in the second test against France in the last match of the tour, in a then record 52–0 win. Although played at either fullback or in the centres for Manly by Fulton, Shearer was picked on the wing for both Queensland and Australia in 1987, helping the Maroon's to regain the State of Origin shield from New South Wales, and in Australia's shock 6–13 loss to New Zealand at Lang Park. He was Manly's starting fullback in their 18-8 Winfield Cup grand final win over the Canberra Raiders in the last ever grand final played at the Sydney Cricket Ground in 1987. Manly had finished the season as minor premiers with a 20-5-1 record (which included a 12-game winning streak), with Shearer playing 20 games (14 at fullback and 6 in the centres) and scoring a career high 13 tries to be the club's leading try scorer for the season. Following the grand final victory he travelled with Manly to England for the 1987 World Club Challenge against the English champions, Wigan, at Central Park. In the following off-season he also played 14 games in the championship-winning Widnes team in England during the 1987–88 RFL championship. Shearer played for Manly until 1989 1990s Shearer joined the Brisbane Broncos. He was selected to play for Queensland in all three games of the 1990 State of Origin series at centre. Shearer was the 1990 Brisbane Broncos season's goal kicker. He was selected to go on the 1990 Kangaroo tour of Great Britain and France. Shearer was selected to play for Queensland from the interchange bench in the 1991 State of Origin series' 2nd and 3rd games. He was then selected to play for Australia in the first match of the 1991 Trans-Tasman Test series on the wing. Shearer then joined the Gold Coast Seagulls. He was selected as Queensland's fullback for all three games of the 1992 State of Origin series. He played for Queensland at fullback in games 2 and 3 of the 1993 State of Origin series. Shearer was Australia's fullback and goal kicker in all three matches of the 1993 Trans-Tasman Test series. He played his last match for Australia in 1993. Shearer then joined the South Queensland Crushers. He