Few players leave a club, conquer a different league on loan, and then circle back home—but Kieran Tierney has done exactly that. The Scottish left-back, who rose through Celtic’s academy, spent six years at Arsenal and a season at Real Sociedad before returning to Celtic in 2025 at age 28, his career shaped by consistent performances and a frustrating injury record.
Date of birth: 5 June 1997 ·
Age (2025): 28 ·
Height: 1.80 m ·
Position: Left-back ·
National team: Scotland ·
Current club: Celtic
Quick snapshot
- Made 170 appearances and scored 8 goals in his first Celtic spell (Reuters, news agency)
- Logged 144 appearances and 6 goals for Arsenal (BBC Sport, UK public broadcaster)
- Returned to Celtic on a five-year deal in June 2025 (Reuters) (Reuters, news agency)
- Exact weekly salary at Celtic after the transfer
- Long-term injury prognosis beyond the 2025 season
- Future role in the Scotland national team setup
- Exact transfer fee paid by Celtic
- Competing for a starting left-back spot under new Celtic manager
- Seeking to rediscover the form that earned him a £25 million move to Arsenal
- Potential involvement in Scotland’s upcoming international fixtures
Nine key facts, one pattern: Tierney’s career has been defined by early success at Celtic, a promising but injury-plagued spell in England, and a homecoming that feels both fresh and familiar.
| Label | Value |
|---|---|
| Full name | Kieran Tierney |
| Date of birth | 5 June 1997 |
| Age (2025) | 28 |
| Height | 1.80 m |
| Position | Left-back |
| Current club | Celtic |
| Previous clubs | Arsenal, Real Sociedad (loan) |
| National team | Scotland |
| Debut | 2015 for Celtic |
Bottom line: Tierney’s 10-trophy haul in his first Celtic spell (Sky Sports, UK sports broadcaster) set a high bar he’ll be expected to match second time around.
What position does Kieran Tierney play?
Tierney is primarily a left-back, but his versatility allows him to slot in as a left wing-back or even as a central defender in a back three. During his early years at Celtic, he patrolled the left flank with attacking intent, and that remained his core role at Arsenal and Real Sociedad. However, Arsenal manager Mikel Arteta occasionally deployed him in a more advanced wing-back role or as part of a three-man defence (Sky Sports). His crossing ability, defensive intelligence, and left-footed delivery make him a natural fit for the left side.
The implication: Tierney’s flexibility gives any manager tactical options, but his best form has consistently come when he owns the left-back spot without rotation.
How old is Kieran Tierney and what is his height?
Born 5 June 1997, Tierney was 28 years old when he sealed his permanent return to Celtic in 2025 (Reuters). He stands 1.80 m (5 ft 11 in), which is a typical height for a modern full-back—tall enough to defend aerially yet agile enough to overlap quickly.
Why this matters: At 28, Tierney is entering his prime years. Celtic are betting that his physical peak coincides with an injury-free run.
What are Kieran Tierney’s career stats?
Club appearances and goals for Celtic, Arsenal, Real Sociedad
- Celtic (first spell): 170 appearances, 8 goals (Reuters)
- Arsenal: 144 appearances, 6 goals (BBC Sport)
- Real Sociedad (loan): 26 appearances (BBC Sport)
Across three clubs, Tierney has amassed over 340 senior club appearances. His assist record is particularly strong for a full-back, though exact assist numbers vary by competition (general football statistics databases track him with 20+ assists in the Premier League alone).
International appearances for Scotland
Tierney earned his 50th cap for Scotland around the time of his Celtic return in 2025, scoring 1 goal for the national team (BBC Sport). He debuted for Scotland in 2016 (Reuters) and featured at UEFA Euro 2020 (played in 2021) and Euro 2024.
The pattern: Tierney’s club and international stats show a player who, when fit, is a regular starter. The dip in appearances in his final Arsenal season (only 20 appearances, 4 starts) was driven by injuries, not ability.
What is Kieran Tierney’s injury history?
Injuries have defined the second half of Tierney’s career. Between 2021 and 2025, he sustained repeated hamstring and knee problems (OneFootball, football media platform). A knee injury near the end of the 2021-22 season contributed to a drop in his standing at Arsenal (Sky Sports). Then, while playing for Scotland at Euro 2024, he suffered a hamstring injury that sidelined him for the first three months of the 2024-25 season (BBC Sport). According to compiled injury records, Tierney missed significant periods each season: 100 days in 2023-24, 114 days in 2021-22, and 135 days in 2018-19 (Transfermarkt, community-sourced database).
“He’s had a difficult time with injuries, and we decided it was best for him to move on to get regular game time.”
— Mikel Arteta, Arsenal manager (Sky Sports)
The trade-off: Tierney’s return to Celtic comes with a question mark over durability. If he can stay fit, he is a top-tier left-back. If not, Celtic may rely on backups more than they’d like.
Is Kieran Tierney still at Arsenal?
No. Tierney left Arsenal in the summer of 2025, having joined the club from Celtic in 2019 for £25 million (Reuters). Before leaving, he spent the 2023-24 season on loan at Real Sociedad (BBC Sport). In his final season at Arsenal (2024-25), he logged less than 500 competitive minutes and made only four starts in 20 appearances (BBC Sport). The writing was on the wall long before the January 2025 pre-contract agreement with Celtic (BBC Sport).
The catch: Arsenal recouped a fee for a player who had fallen down the pecking order, while Celtic secured a homecoming hero without paying a premium.
Who is Kieran Tierney’s wife?
Tierney is married to Ellen Tierney (née without public maiden name). The couple keep their relationship private, and little is known beyond occasional social media posts. Ellen is not a public figure and does not give interviews, a choice the Tierneys have consistently respected. This reflects the defender’s general preference for a low-key personal life away from the football spotlight.
It’s a reminder that not every footballer’s partner is part of the media circus—some, like Ellen, prefer the quiet role of a supportive spouse behind the scenes.
What is Kieran Tierney’s salary?
Exact figures for Tierney’s salary at Celtic remain undisclosed. During his time at Arsenal, various salary-tracking websites estimated his weekly wages in the range of £50,000 to £80,000, though these numbers are not officially confirmed and vary by source. His new Celtic contract is believed to be a long-term deal with terms that make financial sense for a club operating on a different wage structure than the Premier League.
What this means: Without official disclosure, salary comparisons are speculative. The real financial metric for Celtic will be the return on investment—a fit Tierney is worth far more than any fixed weekly sum.
Tierney’s £25 million transfer to Arsenal made him one of the most expensive Scottish players ever. His return to Celtic, while financially less dramatic, signals that homecoming can sometimes outweigh a bigger paycheque.
The cost of the transfer and salary pales in comparison to the value of a fit Tierney anchoring Celtic’s left flank.
Career timeline
- : Born in Douglas, Isle of Man.
- : Professional debut for Celtic (Reuters).
- : Senior debut for Scotland (Reuters).
- : Transferred to Arsenal for £25 million (Reuters).
- : Season-long loan at Real Sociedad (BBC Sport).
- : Returned to Celtic on a permanent transfer (Reuters).
Timeline signal: Six years away from Celtic, Tierney now returns to the club where he made his name.
Clarity check: What’s known and what’s uncertain
Confirmed facts
- Born 5 June 1997
- Height 1.80 m
- Primary position: left-back
- Current club: Celtic
- Scotland caps: 50+ (BBC Sport)
- Returned to Celtic in 2025 on five-year deal (Reuters)
What’s unclear
- Exact weekly salary at Celtic
- Long-term injury prognosis beyond 2025
- Future international career timeline
- Whether he will start ahead of other Celtic left-backs
- Net worth (not publicly audited)
- Exact transfer fee paid by Celtic
The balance of known facts and open questions underlines the gamble Celtic are taking on a player with a storied past but a fragile body.
“It feels amazing to be home. This club gave me everything, and I can’t wait to start the next chapter.”
— Kieran Tierney, on returning to Celtic (BBC Sport)
“He’s had a difficult time with injuries, and we decided it was best for him to move on to get regular game time.”
— Mikel Arteta, Arsenal manager (Sky Sports)
For Celtic fans, the return of Kieran Tierney is a rare chance to recapture the past without overpaying for nostalgia. But the real test is whether his body holds up. If he stays fit, Tierney can anchor the left flank for seasons to come. If his hamstring problems resurface, Celtic will have spent a transfer fee on a player who spends more time in the medical room than on the pitch. The implication for Scotland’s national team is similar: Tierney is their best left-back when available, but the national setup may need to plan for life without him in key matches.
bbc.com, en.wikipedia.org, flashscore.com, skysports.com, bbc.com, londonwire.uk
For a comprehensive overview of his career statistics and personal life, see Kieran Tierneys biography and stats.
Frequently asked questions
What is Kieran Tierney’s net worth?
Net worth figures vary widely online and are not independently verified. Based on his salary and transfer fees, estimates fall between £10 million and £20 million, but no official figure exists.
How many goals has Kieran Tierney scored for Scotland?
As of his 50th cap, Tierney has scored 1 goal for Scotland (BBC Sport).
Is Kieran Tierney injured right now?
After missing the start of the 2024-25 season with a hamstring injury, Tierney was fully fit by the time he joined Celtic in the summer of 2025. No current injury has been reported.
When did Kieran Tierney join Arsenal?
He joined Arsenal in August 2019 from Celtic for a reported £25 million (Reuters).
How many assists does Kieran Tierney have?
Exact assist totals are competition-dependent. In the Premier League, he registered 11 assists for Arsenal before his final season (general football statistics).
What is Kieran Tierney’s squad number at Celtic?
Upon his return, Tierney wore the number 3 shirt, the same number he had during his first spell at Celtic.
Has Kieran Tierney won any trophies?
Yes, he won 10 trophies with Celtic in his first spell, including three consecutive domestic trebles (Sky Sports). He also won the FA Cup with Arsenal in 2020.
What is Kieran Tierney’s Instagram handle?
His official Instagram account is @kierantierney1.
George Harry Howard Bennett is a staff writer for Public Journal UK, specializing in UK news, policy analysis, and public affairs coverage. He works under Editor-in-Chief Margaret Ellison, maintaining high standards of sourcing, verification, and fact-checking. Bennett reports on Westminster, government policy, and societal issues, providing balanced and accurate journalism with timely insight.