Kristoffer Ajer

Kristoffer Ajer contract and transfer fees

Kristoffer Ajer's contract with Brentford runs until 30 June 2030 (43 months left). The final six months open on 1 January 2030, when FIFA rules let him agree a pre-contract with a club outside England.

Kristoffer Ajer has moved for €16m in disclosed transfer fees since 2015 (2 paid transfers). The biggest: €16m, Celtic to Brentford, Jul 2021.

Brentford paid €16m for Kristoffer Ajer in July 2021. His value is now €26m, €10m above the fee. That is €115k per appearance across his 137 for them so far.

Kristoffer Ajer transfer history and what each club made

• Start · sold to Celtic for €600k (Jul 2016)
• Celtic · signed from Start for €600k (Jul 2016) · sold to Brentford for €16m (Jul 2021) · profit for Celtic €15m
• Brentford · signed from Celtic for €16m (Jul 2021) · current club

Kristoffer Ajer injury record and availability

Kristoffer Ajer has no injury or suspension on record as of 10 Nov 2026.

In the 2026/27 league season Kristoffer Ajer has played 900 of a possible 900 minutes (100%): 10 starts and 10 appearances in 10 games, average rating 6.88.

Since 2016, Kristoffer Ajer has had 14 injury spells: 321 days out and 63 games missed. Most frequent: hamstring injury (2 times). Longest: hamstring injury, 53 days (Jul 2022).

• 2026/27: no injury recorded
• 2025/26: 1 spell, 5 days out, 1 game missed
• 2024/25: 2 spells, 84 days out, 18 games missed

Brentford injury list

Kristoffer Ajer international career: Norway caps

Kristoffer Ajer has 61 senior caps for Norway (5,229 minutes, 58 starts), the first in March 2018.

Last 12 months: 15 caps, 15 starts, 1,320 minutes in 16 matchday squads. Last in the squad on 9 Oct 2026.