Born on April 17, 1998, in Norway, Kristoffer Ajer is a robust, 6ft 5in (1.96m) central defender, currently based at Brentford. At 26 years of age, he has managed to garner a reputation for himself by consistently performing well both domestically and internationally. He represents Norway on an international level, in addition to suiting up for Brentford's domestic fixtures, wearing the number 20 shirt.
Citing Transfermarkt, Ajer has a present market worth of approximately £15.7m. As of now, his contract with Brentford has three years and five months left, set to end on June 30, 2028.
Ajer began his career in professional football with Start in Norway's OBOS-ligaen as a trainee in January 2014. He quickly made a mark with 13 appearances and a goal to his name during his debutants' 2014 season. In the subsequent 2015 season, the towering defender played in a notable 28 matches and netted eight goals. This was followed by another solid season with 11 appearances in 2016.
It was in July 2016, Ajer transferred from Norway's OBOS-ligaen to Celtic in the Scottish Premiership. He was acquired for around £750k. Now, being a member of the Celtic squad for over four seasons, his stint with the club in Scotland needs more elaboration. Ajer featured in 24 matches during the 2017-2018 season, followed by 28 appearances each in the 2018-2019 and 2019-2020 seasons. These two seasons also saw Ajer find the back of the net thrice. His best season, however, in terms of appearances arrived in 2020-2021 with him featuring in 35 first team games and contributing two goals.
In January 2017, he found his services loaned out to Kilmarnock, also in the Scottish Premiership, where he made 16 appearances. Having completed his loan spell, Ajer returned to Celtic in July 2017 for a fruitful spell before his final departure in 2021 to Brentford for a fee of around £14m.
Ajer now represents Brentford in England's Premier League. During his initial 2021-2022 season, he made 24 appearances with a single goal. He made 9 appearances in 2022-2023, then played 28 times and recorded two goals in the 2023-2024 season. The current 2024-2025 season has seen Ajer feature in 11 first team matches so far.
Aside from his club commitments, Ajer has also made an impact in domestic and international cups. He started once for Brentford in the 2024-2025 League Cup, three times in the 2022-2024 Euro Qualifiers for Norway with an additional appearance off the bench, and two starts in the 2024-2025 Nations League for Norway.
