John Barclay is a flanker who has become a mainstay of Scotland's back row in recent years. He joined Glasgow as a 17-year-old in 2004 and has represented the Celtic League side ever since. In the lead up to the 2007 RWC he was the only uncapped played named in Scotland's squad. Following appearances for Scotland's youth sides as well as their A team he made his senior debut for Scotland in the 2007 RWC match against New Zealand, the day before he turned 21.