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Kristoffer Ajer

Kristoffer Vassbakk Ajer (born 17 April 1998) is a Norwegian professional footballer who plays for Premier League club Brentford. Ajer has previously played for Start in the Tippeligaen and Celtic in the Scottish Premiership, where he also had a loan spell with Kilmarnock. Ajer played as a midfielder when he was at Start but when he was at Celtic he switched to a defender, presumably due to his height.

Club Career

He made his professional debut for Start on 19 July 2014 in a 2–1 win against Bodo/Glimt.

At 16 years of age, Ajer captained Start in a 1–1 draw against Lillestrom on 7 April 2015, becoming the youngest ever footballer to captain a team in the Tippeligaen. While playing for IK Start he played both as a central midfielder, but was gradually placed as a central defender.

In early January 2016, Ajer had a one-week trial with Scottish club Celtic. On 17 February 2016, he signed a four-year contract with Celtic and joined the club in June 2016 for a fee which could rise up to £650,000. He was loaned to Kilmarnock in January 2017 but has since returned to his parent club where he has become a mainstay in central defence. On 14 May 2018, Ajer penned a new four-year deal with Celtic. On 30 August, Ajer scored his first goal for Celtic in a 3–0 win against FK Suduva.


On 24 October 2019, Ajer made his 100th appearance in all competitions for Celtic's first team in a Europa League match against Lazio.

On 21 July 2021, Ajer completed a move to English side Brentford on a five-year deal for an undisclosed fee.

This page also has a version in other languages :  Кристофер Айер (russian)

Kristoffer Ajer

Kristoffer Ajer News

29 April 2025
sportsmole.co.uk
Nott'm Forestvs.Brentford
Brentford manager Thomas Frank is set to stick with largely the same XI that won last time out when they travel to Nottingham Forest in the Premier League on Thursday.
17 April 2025
sportsmole.co.uk
Brentfordvs.Brighton
Brentford's search for their first home win of 2025 continues on Saturday, when the Bees welcome fellow mid-table battlers Brighton & Hove Albion to the Gtech Community Stadium in the Premier League.
17 April 2025
sportsmole.co.uk
Brentfordvs.Brighton
Still searching for their first victory at the Gtech Community Stadium since 2024, Brentford battle Brighton & Hove Albion in Saturday's mid-table Premier League fixture in West London.
10 April 2025
sportsmole.co.uk
Arsenalvs.Brentford
Brentford manager Thomas Frank is expected to be working with an identical or perhaps strengthened squad for Saturday's Premier League London derby against Arsenal at the Emirates.
6 April 2025
sportsmole.co.uk
Brentford0 - 0Chelsea
Brentford and Chelsea have announced their starting lineups for Sunday's Premier League fixture at the Gtech Community Stadium.
4 April 2025
sportsmole.co.uk
Brentfordvs.Chelsea
Brentford head coach Thomas Frank has confirmed that Mikkel Damsgaard will come into the starting lineup for Sunday's Premier League meeting with Chelsea.
31 March 2025
sportsmole.co.uk
Brentford predicted XI vs. Newcastle United: Possible starting lineup for Thomas Frank's team as attackers set to miss game
Brentford boss Thomas Frank will hope his depleted attacking unit can still secure victory against Newcastle United on Wednesday.
31 March 2025
sportsmole.co.uk
Newcastlevs.Brentford
EFL Cup champions Newcastle United continue their quest for Champions League football when they host Brentford at St James' Park in the Premier League on Wednesday.
23 March 2025
sportsmole.co.uk
Israelvs.Norway
First meets second in Tuesday's World Cup 2026 Qualifying Group I showdown, as Israel and Norway seek to maintain their 100% starts at the former's adopted home in Debrecen, Hungary.
13 March 2025
sportsmole.co.uk
Bournemouthvs.Brentford
Brentford fans are still waiting to learn whether Sepp van den Berg and Michael Kayode will be available for Saturday's Premier League battle with Bournemouth at the Vitality Stadium.
6 March 2025
sportsmole.co.uk
Brentfordvs.Aston Villa
Brentford boss Thomas Frank ought to be boosted by the return of Christian Norgaard for Saturday's Premier League visit of Aston Villa to the Gtech Community Stadium.
6 March 2025
sportsmole.co.uk
Brentfordvs.Aston Villa
Sat either side of the top-half line in the Premier League table, Brentford and Aston Villa do battle at the Gtech Community Stadium on Saturday evening.
13 February 2025
sportsmole.co.uk
West Hamvs.Brentford
Brentford head coach Thomas Frank is keeping his fingers crossed that Mark Flekken will be fit for Saturday's Premier League London derby with West Ham United at the London Stadium.
13 February 2025
sportsmole.co.uk
West Hamvs.Brentford
Atoning for London derby defeats with a London derby win will be the objective for both West Ham United and Brentford in Saturday's Premier League showdown at the London Stadium.
31 January 2025
sportsmole.co.uk
Brentfordvs.Spurs
Brentford new boy Michael Kayode should be in line for his Bees debut when Thomas Frank's men host Tottenham Hotspur in Sunday's Premier League London derby.
27 January 2025
sportsmole.co.uk
Brentford defender completes Bundesliga loan move just days after Michael Kayode arrival
Brentford have confirmed that full-back Mads Roerslev has joined Wolfsburg on loan until the end of the season.
24 January 2025
sportsmole.co.uk
Crystal Palacevs.Brentford
Brentford boss Thomas Frank could be without up to six of his players this weekend, as the Bees make the short trip to Selhurst Park to play Crystal Palace.
24 January 2025
sportsmole.co.uk
Crystal Palacevs.Brentford
Two London teams meet at Selhurst Park this weekend, as Crystal Palace host Brentford on Sunday afternoon in the Premier League.
20 January 2025
sportsmole.co.uk
Brentford 'in talks' to sign Serie A defender as Bees 'receive' Mads Roerslev bid
Brentford have reportedly held talks over a potential move to sign Fiorentina defender Joshua Kayode amid reports that the Bees have received a proposal for Mads Roerslev.
17 January 2025
sportsmole.co.uk
Brentfordvs.Liverpool
Still without a Premier League win in 2025, Liverpool head to the Gtech Community Stadium for a fascinating date with Brentford on Saturday afternoon.
17 January 2025
sportsmole.co.uk
Brentford transfer news: Mads Roerslev attracting loan interest from Bundesliga club?
Wolfsburg have reportedly started talks over a potential loan deal for Brentford defender Mads Roerslev.
16 January 2025
sportsmole.co.uk
Brentfordvs.Liverpool
Brentford left-back Rico Henry will be in contention to make his first Premier League start in 16 months when Liverpool visit the Gtech Community Stadium on Saturday afternoon.
16 January 2025
sportsmole.co.uk
Brentfordvs.Liverpool
Aiming for their first Premier League win of 2025 at the third attempt, leaders Liverpool face a taxing trip to the Gtech Community Stadium to meet Brentford on Saturday afternoon.
13 January 2025
sportsmole.co.uk
Brentfordvs.Man City
On the back of contrasting third-round results in the FA Cup, Brentford and Manchester City resume Premier League action in Tuesday's meeting at the Gtech Community Stadium.
12 January 2025
sportsmole.co.uk
Brentfordvs.Man City
Brentford left-back Rico Henry is in line for his first Premier League appearance since September 2023 when the Bees host Manchester City at the Gtech Community Stadium on Tuesday.
12 January 2025
sportsmole.co.uk
Brentfordvs.Man City
Kicking off a three-game road trip in the English capital, a revitalised Manchester City seek a fourth win on the spin in Tuesday's Premier League clash with Brentford at the Gtech Community Stadium.
10 January 2025
sportsmole.co.uk
Brentfordvs.Plymouth
Premier League side Brentford welcome Championship strugglers Plymouth Argyle to the Gtech Community Stadium for an FA Cup third-round tie on Saturday afternoon.
3 January 2025
sportsmole.co.uk
Southamptonvs.Brentford
Bottom-of-the-table Southampton welcome poor travellers Brentford to St Mary's in the Premier League on Saturday.
2 January 2025
sportsmole.co.uk
Southamptonvs.Brentford
Brentford manager Thomas Frank remains without three of his first-choice central defenders ahead of their trip to Southampton in the Premier League on Saturday.
2 January 2025
sportsmole.co.uk
Southamptonvs.Brentford
New Southampton boss Ivan Juric will continue to seek a first win since taking over when they welcome Brentford to St Mary's in the Premier League on Saturday.
31 December 2024
sportsmole.co.uk
Brentfordvs.Arsenal
The first Premier League game of 2025 promises to be a fascinating affair, as London rivals Brentford and Arsenal collide at the Gtech Community Stadium on New Year's Day.
30 December 2024
sportsmole.co.uk
Brentfordvs.Arsenal
Brentford head coach Thomas Frank is hopeful that goalkeeper Mark Flekken can prove his fitness in time for Wednesday's Premier League home meeting with Arsenal.
30 December 2024
sportsmole.co.uk
Brentfordvs.Arsenal
The Brentford medical team are currently nursing 11 injured players back to health ahead of their Premier League London derby against Arsenal at the Gtech Community Stadium on New Year's Day.
30 December 2024
sportsmole.co.uk
Brentfordvs.Arsenal
After the New Year's Eve celebrations have drawn to a close, fireworks should continue to fly at the Gtech Community Stadium, where London rivals Brentford and Arsenal play the first Premier League game of 2025 on January 1.
26 December 2024
sportsmole.co.uk
Brightonvs.Brentford
Brighton & Hove Albion and Brentford lock horns in one of the two Premier League matches being played the day after Boxing Day this year.
25 December 2024
sportsmole.co.uk
Brightonvs.Brentford
Thomas Frank has claimed he could name a "very strong XI" purely consisting of players currently sidelined in his Brentford squad, ahead of their trip to Brighton & Hove Albion on Friday.
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