Kieran Tierney
Kieran Tierney (born 5 June 1997) is a Scottish professional footballer who plays for Premier League side Arsenal and the Scotland national team as a left back or centre-back. Born on the Isle of Man, Tierney moved to Lanarkshire at a young age. He came through the Celtic youth system and made his first team debut in April 2015, and his full international debut in March 2016. He joined Arsenal in August 2019 for a fee reported at £25 million, a record amount both for a Scottish national and for a player from the Scottish league
Born in Douglas on the Isle of Man, Tierney moved to Wishaw in Scotland aged 10 months. He supported Celtic as a child and signed for the club when he was 7 years old. He was educated at Motherwell schools St Brendan's RC Primary and Our Lady's High (one year group behind fellow footballers, twins Nicky and Chris Cadden) then attended St Ninian's High School, Kirkintilloch, which has a development partnership with Celtic. He has spoken of his hope of emulating the late Tommy Gemmell, a member of the Lisbon Lions team who also grew up in Wishaw (specifically, Craigneuk) and played in the same position.
He progressed through the various youth ranks and earned a reputation as a dependable wide player in the club's development squad, both in defence and attack. He travelled with the first team squad on a pre-season trip to Finland in August 2014, and made his debut in a friendly against Tottenham Hotspur there. Although Celtic lost, Tierney described his first appearance for the first team as a "dream come true". He continued to play in the development squad throughout 2014–15, and in October 2014 during a Development League match against Heart of Midlothian he scored a goal from the edge of his own penalty box
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