Date of birth
Jan Holldack joined The Bees in the summer of 2015 after his contract at 1. FC Koln expired. The German Under-18 international had been with Koln since he was 15 and played for them in the Under-17 and Under-19 Bundesliga.
Jan made his Brentford debut in the EFL Cup against Exeter City in August 2016 after featuring for the First Team in pre-season. He was also an unused substitute against Huddersfield Town on the opening day of the Sky Bet Championship that season.
He spent the second half of the 2016/17 campaign on loan in the German fourth tier with Wuppertaler SV, making 13 appearances and scoring three goals.
In June 2017, Jan signed a new one-year deal at Griffin Park.