Kieran Tierney, born on 5 June 1997 in Scotland, has spent the majority of his time dominating football pitches in the defender position, primarily as a left back. Standing at the athletic height of 5ft 10in (1.78m) and wildlife just over 167 pounds (76kg), Tierney stirs fans' hearts when he takes to Celtic's football field showing off his number 63 jersey. As well as representing Celtic, Tierney has also worn the Scotland national team's colours proudly.
With his proficient skills in match manoeuvres, Tierney currently boasts a market value around £6.75m, details of which can be found on Transfermarkt.
Since joining Celtic as a trainee back in July 2005, Tierney steadily climbed up ranks. His debut season in 2014 - 2015 saw him making two appearances in first team league matches. As the seasons rolled on, so did Tierney's performances; making a total of 100 first team appearances and netting nine goals from the seasons 2014/15 to the present 2025/26 season.
Tierney's loyalty to Celtic was briefly interrupted when he transferred to Arsenal in the English Premier League for a hefty fee of around £25m in August 2019. During his stint at Arsenal, he made a total of 104 appearances and scored five goals across five seasons (2019 - 2024).
Further twist in Tierney's career saw him transferring on loan to Real Sociedad in LaLiga, Spain in August 2023 where he made 20 first team appearances in the 2023 - 2024 season. Following the completion of his loan in July 2024, Tierney returned to Arsenal.
However, his heart seemingly lay with his Scottish roots. Tierney transferred back to Celtic in July 2025 and the current season 2025/26 has seen him make 25 further first team appearances and score four goals in league matches.
Alongside his busy schedule with Celtic, Tierney managed to play in a number of key tournaments. This includes the League Cup 2025 - 2026, Scottish Cup 2025 - 2026, World Cup Qualifiers Europe 2024 - 2026 for Scotland, Champions League Qualifiers 2025 - 2026, and Europa League 2025 - 2026, all for Celtic. With his relentless casts on and off pitch, Kieran Tierney is a name that easily etches itself on the hearts of Celtic fans.
