Loof was the third-round pick, 88th overall, of the St. Louis Blues in the 2020 NHL Entry Draft. The 22-year-old Loof has one point (0G / 1A) in 11 games with the Springfield Thunderbirds (AHL) this season.

Lööf was a third-round pick (No.88 overall) in the 2020 NHL Draft. The 21-year-old blueliner had four goals and 12 assists (16 points) in 55 games with Ilves Tampere (Liiga) in 2023.