Stuart Alexander Corsar, a product of the Garioch club in Inverurie, represented Caledonia at under-16, under-18, under-19 and under-20, captaining the district at both under-18 and under-19, and he played also for Scottish Schools at under-16 and Scotland at under-18, under-19, and under-21 levels.
His under-19 honours included all four matches in the world championship in France in 2003, when he scored a try against Romania. He made his under-21 debut in the world championship warm-up match against Ireland in May 2004, and he went on to play in four of the five championship games in Scotland.
He was again in the national under-21 squad for all five matches in 2005 Six Nations Championship, when Scotland scored victories against Ireland (for the first time), Italy, and England, and he played, too, in the age groups' subsequent world championship in Mendoza, Argentina.
Stuart, a former pupil of Inverurie Academy, took a sports coaching and development course at Aberdeen College and worked as a leisure and gym attendant at Garioch Sports Centre before joining Glasgow Warriors in the summer of 2005.
He has also been part of the Scottish Thistles sevens development squad. He is a member of the National Rugby Academy (Glasgow) and the West of Scotland Institute of Sport.
Stuart was last season's Scotland U21 player of the year and played for his country in the U21 World Cup in Argentina.