Zellweger, 17 (10/10/03), ranked fourth among all Western Hockey League (WHL) defensemen in points per game (1.18) after scoring 2-11=13 points and a +5 rating in 11 games in the shortened 2020-21 campaign with the Everett Silvertips. In 70 career WHL games with Everett, he has earned 4-21=25 points with a +25 rating and 10 PIM. He was ranked as the No. 45 North American Skater by NHL Central Scouting entering the draft.
The 5-9, 175-pound defenseman registered 2-10=12 points with a +20 rating and eight penalty minutes (PIM) in 58 games with the Silvertips in 2019-20 as a rookie, ranking 14th among WHL rookie defensemen in scoring. A native of Fort Saskatchewan, Alberta, Zellweger helped Canada to a gold medal at the 2021 U-18 World Championship, ranking tied for the tournament lead among defensemen with 1-7=8 points with a +8 rating in seven tournament games.
