Kristoffer Ajer has penned a new contract with Brentford.
The Norway defender has penned terms to 2028.
Bees manager Thomas Frank told the club's website: "I'm very pleased that Kristoffer has extended his contract.
"Now he is playing regularly at centre-back and right full-back and I think he plays both of those positions at a very high level.
"Kristoffer has shown consistency and quality in this recent block of games, which I'm pleased about."