Manchester City's new centre-forward completed his move to the champions this week, which involved him undergoing a medical to finalise the transfer.
Haaland visited The Manchester Institute of Health and Performance for the final part of his fitness checks, which included blood tests and a DEXA scan.
It also saw the Man City medical department measure the strapping striker, who was told he stands at 195.2cm (6ft 4in).
And the ex-Borussia Dortmund man was shocked by the results, claiming he's grown since his last assessment.
The 21-year-old revealed in a video posted by the club: "Oh wow, I've grown… almost one centimetre!"
Later in the clip, the meets some of his new teammates, before sitting down to officially sign his City contract.
It means the striker will join the reigning Premier League champions and will play under boss Pep Guardiola at the Etihad Stadium next season.
It's a scary thought, especially if he's going to keep growing.
Imagine a 7ft tall Haaland - that really would be a defender's worst nightmare.