Kieran Tierney is a Scottish footballer who plays as a left-back or centre-half for the Premier League club Arsenal and the Scotland national football team.
The player progressed through the various youth ranks at his boyhood club Celtic and gained a reputation as a dependable wide player in the team’s development squad, both in defence and attack.
He travelled with the senior team squad on a pre-season trip to Finland in the summer of 2014, and made his debut in a friendly versus Tottenham Hotspur there. Although Celtic lost, Kieran described his first appearance for the senior team as a “dream come true”.
The defender continued to play in the development roster throughout 2014–15, and in October 2014 during a Development League game against Heart of Midlothian, he netted a goal from the edge of his own penalty area.
Tierney enjoyed a breakthrough campaign in 2015–16, appearing in over 30 games and displacing teammate Emilio Izaguirre as first-choice left-back.
For his showings, he was awarded with both the Writers’ and Players’ Young Player annual awards, while the Celts also won the league title.
In spite of interest from Premier League sides, Tierney signed a fresh five-year contract in the summer of 2016, keeping him at Parkhead until June 2021.
The following year, after missing three months, Kieran made his long-awaited return to the Celts team in a Scottish Cup tie versus Albion Rovers.
He was crowned PFA Scotland Young Player of the Year for the second successive season on 7 May, making Tierney the first to achieve this since Craig Levein back in 1986.
By the end of the campaign, further personal achievements came – claiming both the Players’ and Writers’ Young Player awards for the third season in succession – and played a key role in securing a historic ‘double treble’ for Celtic, making more than 50 matches.
In the summer of 2019, Tierney joined the Gunners, for a reported £25m fee.
He made his senior team debut for Arsenal in a 5–0 win over Nottingham Forest in the EFL Cup.
His campaign was further disrupted after suffering a dislocated shoulder in the match against West Ham United.
Tierney scored his first goal for the club in a 3–2 victory against Watford on the final day of the 2019–20 PL season.
In June 2021, he penned a long-term contract with the north London giants.