Scotland-born Kieran Tierney, who presently carries the number 63 jersey for Celtic as a left back, was born on 5 June 1997. Standing at a comfortable 1.78m (5ft 10in) and weighing in at 76kg (11st 13lb), Tierney has consistently demonstrated his capabilities on the football pitch, having also donned the Scotland national team's colours.
Tierney's market worth currently revolves around £6.8m, as noted by Transfermarkt.
Beginning his professional journey as a trainee in July 2005, Tierney accords much of his football upbringing to Celtic in the Premiership in Scotland. His debut season with Celtic kicked off in 2014, where he made a modest two first-team appearances. Over the subsequent seasons, Tierney steadily increased his first team participation, making 23 appearances and scoring his first league goal in the 2015 - 2016 season. This upward trajectory continued, culminating in a strong performance in the 2017 - 2018 season with 32 appearances and three league goals. In his most recent stint at Celtic in the 2025 - 2026 season, Tierney has made a commendable 29 first-team appearances and netted five goals.
August 2019 marked a significant chapter in Tierney's career when he transferred from Celtic to English Premier League giants Arsenal, marking a substantial shift in his professional journey. His performance at Arsenal varied, with standout performances in the 2020 - 2021 and 2022 - 2023 seasons, where he made 27 first team appearances in both. Furthermore, his stint at Arsenal was briefly paused in August 2023 when he was loaned to Real Sociedad in Spain's LaLiga, before making his return to Arsenal the following year.
Returning to familiar territory in July 2025, Tierney retransferred from Arsenal back to Celtic in Scotland. Known to Celtic fans for his consistent performances over his initial years at the club, his return anticipated much fanfare. Beyond club football, Tierney has demonstrated his international prowess with Scotland in the World Cup Qualifiers Europe 2024 - 2026, netting a single goal, as well as with Celtic in the League Cup, Scottish Cup, Champions League Qualifiers, and Europa League.
