Brentford FC· Premier LeagueAvec le Celtic Glasgow, Ajer a remporté trois championnats d'Écosse, trois coupes d'Écosse et trois coupes de la Ligue écossaise. Il a également gagné la Premier League Cup avec Brentford en 2021.
Kristoffer Ajer est un défenseur central norvégien né à Rælingen, qui évolue actuellement à Brentford FC en Premier League. Il a débuté sa carrière professionnelle à Start avant de rejoindre le Celtic Glasgow, où il a remporté plusieurs titres nationaux. En 2021, il a signé à Brentford, club avec lequel il a connu la montée en Premier League.
Ajer est un défenseur central moderne, doté d'une grande taille et d'une bonne technique balle au pied, ce qui lui permet de relancer proprement depuis l'arrière. Il est solide dans les duels aériens et possède une bonne lecture du jeu, mais peut parfois manquer de vitesse face à des attaquants rapides. Son profil polyvalent lui permet également de jouer au milieu de terrain si nécessaire.
| Season | Comp | Apps | G | A | YC | RC | Min |
|---|---|---|---|---|---|---|---|
| 25/26 | Premier League | 27 | 0 | 1 | 4 | 0 | 1809 |
| 25/26 | International Friendlies | 5 | 0 | 0 | 1 | 0 | 390 |
| 25/26 | FA Cup | 1 | 0 | 0 | 0 | 0 | 97 |
| 25/26 | EFL Cup | 3 | 0 | 1 | 0 | 0 | 232 |
| 24/25 | UEFA Nations League B | 2 | 0 | 0 | 0 | 0 | 180 |
| 24/25 | Premier League | 24 | 0 | 0 | 5 | 0 | 1443 |
| 24/25 | FA Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 24/25 | EFL Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 23/24 | Premier League | 28 | 2 | 1 | 5 | 0 | 1833 |
| 23/24 | International Friendlies | 6 | 1 | 0 | 1 | 0 | 540 |
| 23/24 | FA Cup | 1 | 0 | 0 | 0 | 0 | 62 |
| 23/24 | EFL Cup | 2 | 0 | 0 | 0 | 0 | 98 |
| 22/23 | UEFA Nations League B | 1 | 0 | 0 | 0 | 0 | 32 |
| 22/23 | Premier League | 9 | 0 | 0 | 0 | 0 | 766 |
| 22/23 | International Friendlies | 0 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | FA Cup | 1 | 0 | 0 | 0 | 0 | 80 |
| 22/23 | European Qualifiers | 4 | 0 | 0 | 1 | 0 | 283 |
| 22/23 | EFL Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 22/23 | Premier League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 21/22 | Premier League | 24 | 1 | 2 | 5 | 0 | 1987 |
| 21/22 | International Friendlies | 1 | 0 | 0 | 0 | 0 | 90 |
| 21/22 | FA Cup | 2 | 0 | 0 | 0 | 0 | 152 |
| 21/22 | UEFA Champions League Qualifying | 0 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | EFL Cup | 2 | 0 | 0 | 0 | 0 | 135 |
| 2025 | World Cup Qualifiers (Europe) | 8 | 1 | 0 | 1 | 0 | 703 |
| 2021 | World Cup Qualifiers (Europe) | 4 | 0 | 0 | 0 | 0 | 360 |
| 2016 | NM-Cup | 3 | 1 | 1 | 0 | 0 | 270 |
| 2016 | Eliteserien | 11 | 0 | 1 | 4 | 0 | 934 |
| 2015 | Relegation Eliteserien | 2 | 0 | 0 | 0 | 0 | 180 |
| 2015 | NM-Cup | 2 | 4 | 0 | 1 | 0 | 135 |
| 2015 | Eliteserien | 30 | 8 | 4 | 2 | 0 | 2582 |
| 2014 | NM-Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 2014 | Eliteserien | 13 | 1 | 1 | 1 | 0 | 605 |
| 20/21 | UEFA Nations League B | 4 | 0 | 0 | 0 | 0 | 360 |
| 20/21 | Scottish FA Cup | 2 | 0 | 0 | 0 | 0 | 180 |
| 20/21 | Scottish Premiership Top Six Split | 4 | 1 | 2 | 0 | 0 | 360 |
| 20/21 | Scottish League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 20/21 | Scottish Premiership | 31 | 1 | 1 | 1 | 0 | 2683 |
| 20/21 | International Friendlies | 2 | 0 | 0 | 0 | 0 | 160 |
| 20/21 | UEFA Europa League Qualifying | 2 | 0 | 0 | 0 | 0 | 180 |
| 20/21 | UEFA Europa League | 5 | 0 | 1 | 0 | 0 | 410 |
| 20/21 | UEFA Champions League Qualifying | 1 | 0 | 0 | 0 | 0 | 90 |
| 19/20 | Scottish FA Cup | 3 | 0 | 0 | 1 | 0 | 300 |
| 19/20 | Scottish League Cup | 4 | 0 | 0 | 1 | 0 | 346 |
| 19/20 | Scottish Premiership | 28 | 3 | 2 | 3 | 0 | 2508 |
| 19/20 | European Qualifiers Play-offs | 1 | 0 | 0 | 0 | 0 | 120 |
| 19/20 | UEFA Europa League Qualifying | 2 | 0 | 0 | 0 | 0 | 105 |
| 19/20 | UEFA Europa League | 8 | 0 | 0 | 2 | 0 | 675 |
| 19/20 | UEFA Champions League Qualifying | 5 | 1 | 0 | 1 | 0 | 450 |
| 18/19 | UEFA Nations League C | 2 | 0 | 0 | 0 | 0 | 180 |
| 18/19 | Scottish FA Cup | 4 | 0 | 0 | 0 | 0 | 315 |
| 18/19 | Scottish Premiership Top Six Split | 5 | 0 | 0 | 3 | 0 | 450 |
| 18/19 | Scottish League Cup | 3 | 0 | 0 | 0 | 0 | 203 |
| 18/19 | Scottish Premiership | 23 | 0 | 0 | 3 | 1 | 1715 |
| 18/19 | European Qualifiers | 8 | 0 | 0 | 1 | 0 | 720 |
| 18/19 | UEFA Europa League Qualifying | 2 | 1 | 0 | 0 | 0 | 180 |
| 18/19 | UEFA Europa League | 3 | 0 | 0 | 0 | 0 | 160 |
| 18/19 | UEFA Champions League Qualifying | 5 | 0 | 1 | 2 | 0 | 450 |
| 17/18 | UEFA European Under-21 Championship Qualifying | 5 | 1 | 0 | 2 | 0 | 450 |
| 17/18 | Scottish FA Cup | 5 | 0 | 0 | 0 | 0 | 436 |
| 17/18 | Scottish Premiership Top Six Split | 5 | 0 | 0 | 1 | 0 | 450 |
| 17/18 | Scottish League Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 17/18 | Scottish Premiership | 19 | 0 | 0 | 2 | 0 | 1575 |
| 17/18 | International Friendlies | 4 | 0 | 0 | 1 | 0 | 360 |
| 17/18 | UEFA Europa League | 2 | 0 | 0 | 0 | 0 | 180 |
| 17/18 | UEFA Champions League Qualifying | 2 | 0 | 0 | 1 | 0 | 180 |
| 17/18 | UEFA Champions League | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | UEFA EURO U19 Championship Qualifiers | 6 | 3 | 0 | 0 | 0 | 513 |
| 16/17 | Scottish Challenge Cup | 2 | 0 | 0 | 0 | 0 | 180 |
| 16/17 | Scottish FA Cup | 1 | 0 | 0 | 0 | 0 | 90 |
| 16/17 | Scottish League Cup | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | Scottish Premiership | 16 | 0 | 0 | 2 | 0 | 1440 |
| 16/17 | Premier League International Cup U21 | 1 | 1 | 0 | 0 | 0 | 90 |
| 16/17 | International Friendlies | 1 | 1 | 0 | 1 | 0 | 83 |
| 16/17 | UEFA Champions League Qualifying | 1 | 0 | 0 | 0 | 0 | 30 |
| 16/17 | UEFA Champions League | 0 | 0 | 0 | 0 | 0 | 0 |
| 16/17 | UEFA Youth League | 5 | 0 | 1 | 2 | 0 | 450 |
| 15/16 | International Friendlies | 4 | 1 | 0 | 0 | 0 | 295 |
| 14/15 | UEFA European Under-17 Championship qualification | 2 | 1 | 0 | 2 | 0 | 160 |
| 14/15 | International Friendlies | 4 | 0 | 0 | 1 | 0 | 250 |
| 13/14 | International Friendlies | 3 | 0 | 0 | 0 | 0 | 200 |
| Date | Opponent | H/A | Result | Competition | Min | G | A | YC |
|---|---|---|---|---|---|---|---|---|
| 2026-06-07 | Norway | ✈ | 1:1 | International Friendlies | 72 | 0 | 0 | 0 |
| 2026-06-01 | Sweden | 🏠 | 3:1 | International Friendlies | 63 | 0 | 0 | 0 |
| 2026-03-31 | Switzerland | 🏠 | 0:0 | International Friendlies | 75 | 0 | 0 | 0 |
| 2026-03-27 | Norway | ✈ | 2:1 | International Friendlies | 90 | 0 | 0 | 1 |
| 2025-11-16 | Norway | ✈ | 1:4 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-11-13 | Estonia | 🏠 | 4:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-10-14 | New Zealand | 🏠 | 1:1 | International Friendlies | - | 0 | 0 | 0 |
| 2025-10-11 | Israel | 🏠 | 5:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-09-09 | Moldova | 🏠 | 11:1 | World Cup Qualifiers (Europe) | 73 | 0 | 0 | 0 |
| 2025-09-04 | Finland | 🏠 | 1:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2025-06-09 | Norway | ✈ | 0:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-06-06 | Italy | 🏠 | 3:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2025-03-25 | Norway | ✈ | 2:4 | World Cup Qualifiers (Europe) | 90 | 1 | 0 | 0 |
| 2025-03-22 | Norway | ✈ | 0:5 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 1 |
| 2024-11-17 | Kazakhstan | 🏠 | 5:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-11-14 | Norway | ✈ | 1:4 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-10-13 | Norway | ✈ | 5:1 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2024-10-10 | Slovenia | 🏠 | 3:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2024-09-09 | Austria | 🏠 | 2:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-09-06 | Norway | ✈ | 0:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2024-06-08 | Norway | ✈ | 3:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2024-06-05 | Kosovo | 🏠 | 3:0 | International Friendlies | 90 | 0 | 0 | 1 |
| 2024-03-26 | Slovakia | 🏠 | 1:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2024-03-22 | Czechia | 🏠 | 1:2 | International Friendlies | 90 | 0 | 0 | 0 |
| 2023-11-19 | Norway | ✈ | 3:3 | European Qualifiers | 90 | 0 | 0 | 1 |
| 2023-11-16 | Faroe Islands | 🏠 | 2:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2023-10-15 | Spain | 🏠 | 0:1 | European Qualifiers | 13 | 0 | 0 | 0 |
| 2023-10-12 | Norway | ✈ | 0:4 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2023-09-12 | Georgia | 🏠 | 2:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2023-09-07 | Jordan | 🏠 | 6:0 | International Friendlies | 90 | 1 | 0 | 0 |
| 2023-06-20 | Cyprus | 🏠 | 3:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-06-17 | Scotland | 🏠 | 1:2 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-03-28 | Norway | ✈ | 1:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2023-03-25 | Norway | ✈ | 3:0 | European Qualifiers | - | 0 | 0 | 0 |
| 2022-11-20 | Finland | 🏠 | 1:1 | International Friendlies | - | 0 | 0 | 0 |
| 2022-11-17 | Norway | ✈ | 1:2 | International Friendlies | - | 0 | 0 | 0 |
| 2022-09-27 | Serbia | 🏠 | 0:2 | UEFA Nations League B | 32 | 0 | 0 | 0 |
| 2022-09-24 | Norway | ✈ | 2:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-12 | Sweden | 🏠 | 3:2 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-09 | Slovenia | 🏠 | 0:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-05 | Norway | ✈ | 1:2 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-06-02 | Norway | ✈ | 0:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2022-03-29 | Armenia | 🏠 | 9:0 | International Friendlies | 90 | 0 | 0 | 0 |
| 2022-03-25 | Slovakia | 🏠 | 2:0 | International Friendlies | - | 0 | 0 | 0 |
| 2021-11-16 | Norway | ✈ | 2:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-11-13 | Latvia | 🏠 | 0:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-10-11 | Montenegro | 🏠 | 2:0 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-10-08 | Norway | ✈ | 1:1 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-09-07 | Gibraltar | 🏠 | 5:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-09-04 | Norway | ✈ | 0:2 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-09-01 | Netherlands | 🏠 | 1:1 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2021-06-06 | Norway | ✈ | 2:1 | International Friendlies | 88 | 0 | 0 | 0 |
| 2021-06-02 | Norway | ✈ | 0:1 | International Friendlies | 72 | 0 | 0 | 0 |
| 2021-03-30 | Norway | ✈ | 0:1 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-03-27 | Norway | ✈ | 3:0 | World Cup Qualifiers (Europe) | 90 | 0 | 0 | 0 |
| 2021-03-24 | Norway | ✈ | 0:3 | World Cup Qualifiers (Europe) | - | 0 | 0 | 0 |
| 2020-11-18 | Norway | ✈ | 1:1 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2020-11-15 | Norway | ✈ | 3:0 | UEFA Nations League B | - | 0 | 0 | 0 |
| 2020-10-14 | Northern Ireland | 🏠 | 1:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-10-11 | Romania | 🏠 | 4:0 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-10-08 | Serbia | 🏠 | 1:2 | European Qualifiers Play-offs | 120 | 0 | 0 | 0 |
| 2020-09-07 | Norway | ✈ | 1:5 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2020-09-04 | Austria | 🏠 | 1:2 | UEFA Nations League B | 90 | 0 | 0 | 0 |
| 2019-11-18 | Norway | ✈ | 1:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-11-15 | Faroe Islands | 🏠 | 4:0 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-10-15 | Norway | ✈ | 1:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-10-12 | Spain | 🏠 | 1:1 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-09-08 | Norway | ✈ | 1:1 | European Qualifiers | - | 0 | 0 | 0 |
| 2019-09-05 | Malta | 🏠 | 2:0 | European Qualifiers | - | 0 | 0 | 0 |
| 2019-06-10 | Norway | ✈ | 0:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-06-07 | Romania | 🏠 | 2:2 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-03-26 | Sweden | 🏠 | 3:3 | European Qualifiers | 90 | 0 | 0 | 0 |
| 2019-03-23 | Norway | ✈ | 2:1 | European Qualifiers | 90 | 0 | 0 | 1 |
| 2018-11-19 | Norway | ✈ | 0:2 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-11-16 | Norway | ✈ | 1:1 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-10-16 | Bulgaria | 🏠 | 1:0 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-10-13 | Slovenia | 🏠 | 1:0 | UEFA Nations League C | - | 0 | 0 | 0 |
| 2018-09-09 | Norway | ✈ | 1:0 | UEFA Nations League C | 90 | 0 | 0 | 0 |
| 2018-09-06 | Cyprus | 🏠 | 2:0 | UEFA Nations League C | 90 | 0 | 0 | 0 |
| 2018-06-06 | Panama | 🏠 | 1:0 | International Friendlies | 90 | 0 | 0 | 1 |
| 2018-06-02 | Norway | ✈ | 2:3 | International Friendlies | 90 | 0 | 0 | 0 |
| 2018-03-26 | Norway | ✈ | 0:1 | International Friendlies | 90 | 0 | 0 | 0 |
| 2018-03-23 | Australia | 🏠 | 4:1 | International Friendlies | 90 | 0 | 0 | 0 |