Defender · #20
K. Ajer
AGE28
BORN17 Apr 1998
HEIGHT198 cm
WEIGHT92 kg
NATIONALITYNorway
BIRTHPLACERælingen, Norway
SEASONS9
Premier League
Season stats
APPS2
MINUTES180
RATING7.10
GOALS0
ASSISTS0
SHOTS1
ON TARGET1
KEY PASSES2
PASS %80%
TACKLES2
INTERCEPTIONS2
DUELS WON13
N4 SKILL RATINGS
Skills
70OVERALL
Defender · Duels · vs defenders in Premier League
N4's own ratings: each skill is this player's rank among players in the same position in this league this season. Not an official rating.
CAREER
Season by season
| SEASON | CLUB | COMP | APPS | MIN | GOALS | AST | RTG | YC | RC |
|---|---|---|---|---|---|---|---|---|---|
| 2026-27 |  Brentford | Premier League | 7 | 630 | 1 | 0 | 6.99 | 2 | 0 |
| 2026-27 |  Norway | World Cup | 5 | 480 | 0 | 0 | 6.86 | 1 | 0 |
| 2026-27 | Norway | UEFA Nations League | 4 | 360 | 1 | 0 | 6.85 | 1 | 0 |
| 2026-27 | Norway | Friendlies | 4 | 303 | 0 | 0 | 6.68 | 1 | 0 |
| 2026-27 | Norway | UEFA World Cup Qualifiers | 2 | 180 | 1 | 0 | 7.30 | 1 | 0 |
| 2026-27 | Brentford | League Cup | 1 | 90 | 0 | 0 | 6.83 | 0 | 0 |
| 2025-26 | Brentford | Premier League | 27 | 1820 | 0 | 1 | 6.66 | 4 | 0 |
| 2025-26 | Brentford | League Cup | 3 | 238 | 0 | 1 | 6.97 | 0 | 0 |
| 2025-26 | Norway | Friendlies | 1 | 92 | 0 | 0 | 6.90 | 0 | 0 |
| 2025-26 | Brentford | FA Cup | 1 | 97 | 0 | 0 | 6.20 | 0 | 0 |
| 2024-25 | Brentford | Premier League | 26 | 1460 | – | 0 | 6.66 | 5 | 0 |
| 2024-25 | Norway | World Cup - Qualification Europe | 8 | 703 | 1 | 0 | 7.10 | 1 | 0 |
| 2024-25 | Norway | Friendlies | 4 | 360 | 0 | – | – | 1 | 0 |
| 2024-25 | Norway | UEFA Nations League | 2 | 183 | 0 | 0 | 6.70 | 0 | 0 |
| 2024-25 | Brentford | League Cup | 1 | 90 | – | 0 | 6.90 | 0 | 0 |
| 2023-24 | Brentford | Premier League | 29 | 1861 | 2 | 1 | 6.86 | 5 | 0 |
| 2023-24 | Norway | Euro Championship - Qualification | 4 | 283 | 0 | – | 6.78 | 1 | 0 |
| 2023-24 | Brentford | League Cup | 2 | 98 | 0 | – | 6.95 | 0 | 0 |
| 2023-24 | Brentford | Premier League - Summer Series | 2 | 121 | 1 | – | – | 0 | 0 |
| 2023-24 | Norway | Friendlies | 2 | 180 | 1 | – | 7.90 | 0 | 0 |
| 2023-24 | Brentford | FA Cup | 1 | 62 | 0 | – | – | 0 | 0 |
| 2022-23 | Brentford | Premier League | 9 | 766 | 0 | – | 6.44 | 0 | 0 |
| 2022-23 |  Brentford U21 | Premier League Cup | 2 | 161 | 0 | – | – | 0 | 0 |
| 2022-23 | Brentford | FA Cup | 1 | 80 | 0 | – | 6.30 | 0 | 0 |
| 2022-23 | Norway | UEFA Nations League | 1 | 33 | 0 | – | 6.90 | 0 | 0 |
| 2022-23 | Norway | Friendlies | 1 | 90 | 0 | – | – | 0 | 0 |
| 2021-22 | Brentford | Premier League | 24 | 2000 | 1 | 3 | 6.87 | 5 | 0 |
| 2021-22 | Brentford | League Cup | 2 | 135 | 0 | – | 6.50 | 0 | 0 |
| 2021-22 | Brentford | FA Cup | 2 | 152 | 0 | – | 6.70 | 0 | 0 |
| 2021-22 | Norway | Friendlies | 2 | 160 | 0 | – | – | 0 | 0 |
| 2020-21 |  Celtic | Premiership | 35 | 3043 | 2 | 2 | 7.09 | 1 | 0 |
| 2020-21 | Norway | Euro Championship | 9 | 840 | 0 | – | 6.99 | 2 | 0 |
| 2020-21 | Celtic | UEFA Europa League | 7 | 590 | 0 | 1 | 6.80 | 0 | 0 |
| 2020-21 | Norway | World Cup - Qualification Europe | 4 | 360 | 0 | – | 7.15 | 0 | 0 |
| 2020-21 | Norway | UEFA Nations League | 4 | 360 | 0 | – | 6.80 | 0 | 0 |
| 2020-21 | Celtic | FA Cup | 2 | 180 | 0 | – | – | 0 | 0 |
| 2020-21 | Celtic | League Cup | 1 | 90 | 0 | – | – | 0 | 0 |
| 2020-21 | Celtic | UEFA Champions League | 1 | 90 | 0 | – | 7.20 | 0 | 0 |
| 2020-21 | Celtic | Friendlies Clubs | 1 | 90 | 0 | – | – | 0 | 0 |
| 2019-20 | Celtic | Premiership | 28 | 2509 | 3 | 2 | 7.27 | 3 | 0 |
| 2019-20 | Celtic | UEFA Europa League | 10 | 779 | 0 | – | 6.71 | 2 | 0 |
| 2019-20 | Celtic | UEFA Champions League | 5 | 450 | 1 | – | – | 1 | 0 |
| 2019-20 |  Norway U21 | UEFA U21 Championship | 5 | 450 | 1 | – | – | 2 | 0 |
| 2019-20 | Celtic | League Cup | 4 | 346 | 0 | – | – | 1 | 0 |
| 2019-20 | Celtic | FA Cup | 3 | 300 | 0 | – | – | 1 | 0 |
| 2018-19 | Celtic | Premiership | 28 | 2165 | 0 | – | – | 6 | 1 |
| 2018-19 | Celtic | UEFA Champions League | 5 | 450 | 0 | – | – | 3 | 0 |
| 2018-19 | Celtic | UEFA Europa League | 5 | 339 | 1 | – | 7.10 | 0 | 0 |
| 2018-19 | Celtic | Scottish Cup | 4 | 314 | 0 | – | – | 0 | 0 |
| 2018-19 | Norway | Friendlies | 4 | 360 | 0 | – | – | 1 | 0 |
| 2018-19 | Celtic | League Cup | 3 | 203 | 0 | – | – | 0 | 0 |
| 2018-19 | Norway | UEFA Nations League | 2 | 180 | 0 | – | – | 0 | 0 |
| TOTAL | 350 | 27,756 | 17 | 11 |
FORM
Recent matches
| MATCH | MIN | RTG | G | A | SH | KP | TKL |
|---|---|---|---|---|---|---|---|
| vs Liverpool L 1-217 Oct 2026 · Premier League | 90 | 6.6 | 0 | 0 | 0 | 1 | 3 |
| @ Aston Villa D 2-210 Oct 2026 · Premier League | 90 | 7.2 | 1 | 0 | 2 | 0 | 2 |
| vs Chelsea W 3-018 Sept 2026 · Premier League | 90 | 7.3 | 0 | 0 | 0 | 1 | 0 |
| @ Bournemouth D 2-212 Sept 2026 · Premier League | 90 | 6.6 | 0 | 0 | 1 | 0 | 2 |
| @ Leeds D 1-130 Aug 2026 · Premier League | 90 | 6.9 | 0 | 0 | 0 | 2 | 0 |
| vs Tottenham W 3-022 Aug 2026 · Premier League | 90 | 7.3 | 0 | 0 | 1 | 0 | 2 |
TRANSFERS
Moves & transfer history
- Celtic → Brentford21 Jul 2021€ 15.7M
- Kilmarnock → Celtic1 Jul 2017N/A
- Start → Celtic1 Jul 2016€ 600K
AVAILABILITY
Injury & absence history
- Knock9 May 2025 → 15 May 2025
- Ankle Injury22 Dec 2024 → 22 Jan 2025
- Foot Injury27 Oct 2024 → 3 Dec 2024
- Ankle Injury1 Sept 2024 → 12 Sept 2024
- Facial Injury5 May 2024 → 10 May 2024
- Calf Injury7 Apr 2024 → 19 Apr 2024
- Foot Injury3 Dec 2023 → 15 Jan 2024
- Calf/Shin Injury12 Mar 2023 → 5 May 2023
- Knee Injury30 Oct 2022 → 13 Jan 2023
- Knock30 Jul 2022 → 2 Sept 2022
HONOURS
Trophies won
2× WINNERPremier League Cup2022/2023
4× WINNERPremiership2019/2020, 2018/2019, 2017/2018
4× WINNERScottish Cup2019/2020, 2018/2019, 2017/2018
5× WINNERLeague Cup2019, 2018, 2017, 2016
Also 2 runner-up finishes.