Kieran Tierney, born on 5 June 1997, is a Scottish defender who primarily plays as a left back for Celtic FC. Standing at 5ft 10in (1.78m) tall and weighing 11st 13lb (76kg), he sports the number 63 jersey. Aside from his club duties, Tierney has decorated his career representing the Scotland national team.
As per reports from Transfermarkt, his market value stands at approximately £7m.
Tierney’s journey with Celtic began as early as 2005, joining the Scottish Premiership team as a trainee. He had his debut season (2014 - 2015) with Celtic, making a couple of first team appearances in league matches. Over the next few seasons from 2015 to 2019, Tierney steadily built his reputation with regular performances and goals.
In the 2015 - 2016 season, he made 23 first-team appearances and scored one goal. The following 2016 - 2017 season saw him again play 24 first-team matches and net a goal. Perhaps his most standout season yet for the club was during 2017 - 2018, where he made 32 appearances and scored three times. In the 2018 - 2019 season, Tierney again showed consistency with 21 first-team appearances in league matches.
In a surprising move, the left back transferred from Celtic to Arsenal FC in the English Premier League in August 2019. The hefty transaction cost Arsenal a fee of around £25m. His performances continued with notable consistency across the 2019 - 2023 seasons, punctuated by a loan spell at Real Sociedad of the LaLiga in Spain during 2023 - 2024, making 20 first team appearances.
Back to England in July 2024, Tierney returned from Real Sociedad completing his loan term. His 2024 - 2025 season saw him make 13 first-team appearances and score once for the Gunners. However, a return to his home club was on the horizon. In July 2025, Tierney transferred back from Arsenal FC to Celtic FC. Back in his home turf, the 2025 - 2026 season has thus far seen Tierney making 21 first team appearances and scoring three goals.
Off domestic matches, Tierney has shown flair on multiple fronts including the League Cup 2025 - 2026 for Celtic, World Cup Qualifiers Europe 2024 - 2026 for Scotland, and Europa League 2025 - 2026 for Celtic, putting forth his performances both as a starter and a substitute.
In summary, Kieran Tierney is a homegrown talent who has left an imprint both at Celtic and abroad, returning to Scotland to continue his story where it all began.
