Kristoffer Vassbakk Ajer

Kristoffer Ajer is a 28-year-old Norwegian centre back currently at Brentford in the Premier League. Signed from Celtic in the summer of 2021 for a reported fee in the region of £15.7 million, he has been a regular presence in the Bees' defensive unit across several seasons and brings considerable top-flight experience to a club that continues to punch above its weight in the division.

The 2025/26 season has been a mixed one for Ajer personally. He has made 24 appearances and logged 1,638 minutes, contributing one assist and carrying a season average rating of 6.67 from SportSignals' AI analysis engine. His most productive run came in February, when he started three consecutive matches and earned ratings of 6.76 and 6.79 in a notable away win at Newcastle and a creditable home draw against Arsenal respectively. However, his involvement has since dropped off, with only a brief substitute appearance of 18 minutes against Wolves in March and no recorded minutes in the more recent draw with Everton in April, suggesting he has slipped down the defensive pecking order or has been managing a fitness issue.

At international level, Ajer remains part of the Norway setup, a squad that has grown in profile thanks to the presence of Erling Haaland. His club form and availability will be relevant to his standing in that group, particularly with Nations League and World Cup qualifying fixtures providing regular competitive opportunities. His trophy record includes the Scottish Premiership title from his time at Celtic, where he developed into one of the more technically assured defenders in that league before making the step up to England.

In Brentford's remaining fixtures, the key question around Ajer is whether he can reclaim a starting role or whether his recent absence from the team sheet reflects a longer-term shift in Thomas Frank's defensive selections. Observers will want to monitor his inclusion in matchday squads and whether he returns to a full 90-minute role, which would indicate he has resolved whatever has kept him peripheral in recent weeks.