Kieran Tierney, a Scot born on the 5th of June 1997, is a defender who mainly serves as a left back and has had a successful tenure at Celtic. He weighs in at around 76 kilos (or 11st 13lb), and stands at a height of 1.78m (5ft 10in). In addition to his domestic club football career, Tierney has also worn the national colours for Scotland. He's fond of wearing the number 63 jersey.
Tierney's current market value stands at approximately €8m, translating to £6.9m, according to Transfermarkt.
Tracing the origins of Tierney's professional career, we find that he joined Celtic as a trainee in July 2005, making his first two appearances in the 2014-2015 season. It was not until the 2015 - 2016 season that Tierney fully established himself in the Celtic setup, making 23 appearances and notching up his first goal. He continued to be a regular for Celtic, appearing 24 times in the 2016 - 2017 season, and improved on his goal tally by scoring once in that term. In the 2017 - 2018 and 2018 - 2019 seasons, Tierney made 32 and 21 appearances respectively, showcasing his talents regularly and finding the back of the net an additional three times.
In what came as a quite the move, Tierney transferred to Arsenal - one of English Premier League's stalwarts - for a hefty fee of £25m in August 2019. His time at Arsenal was punctuated with regular appearances and occasional goals, with the 2020 - 2021 season seeing Tierney play 27 matches and score one goal. A notable event in his career was a loan stint at Real Sociedad in the Spanish LaLiga in August 2023.
Upon his return to Arsenal in July 2024, Tierney continued to feature regularly for Arsenal, scoring once in his 13 appearances in the 2024 - 2025 season. However, a year later, in July 2025, Tierney made a return to his boyhood club, Celtic. Upon his re-arrival at Celtic, Tierney quickly established himself in the first team once again, making 18 appearances and scoring thrice in the current 2025 - 2026 season.
Apart from his club football career, Tierney has also represented Celtic and Scotland in international tournaments such as the 2025 - 2026 League Cup, where he had three starts and made one appearance as a substitute, the 2024 - 2026 World Cup Qualifiers Europe for Scotland, where he was substituted in thrice and found the back of the net once, the 2025 - 2026 Champions League qualifiers for Celtic, with two starts, the 2024 - 2025 Nations League for Scotland with two appearances as a substitute, and finally, the 2025 - 2026 Europa League for Celtic where he made six starts.
