Dennis Gardeck holds the WLB · Backup spot in Jacksonville Jaguars’s linebacker room. Where he sits among the room’s front-line roles:

Dennis Gardeck played 18 games in 2025 with a 39% snap share.

Dennis Gardeck is a 6'0", 232-pound linebacker with eight seasons of NFL experience. Gardeck joined Arizona as an undrafted free agent on 4/30/18 and remained with the Cardinals through 3/14/22, earning team captain honors in 2020. He signed with Jacksonville on 6/4/25 and re-signed with the Jaguars on 3/9/26. In 2025, Gardeck appeared in 17 games with six starts, recording 37 tackles, 2.5 sacks, two passes defensed, and one forced fumble. His 2023 season with Arizona saw him play all 17 games and lead the team with 6.0 sacks and 41 tackles.

Cardinals2018 – 2024

Jaguars2025 — present

CollegeSioux Falls; West Virginia StateAcquiredAcquired from Arizona Cardinals · drafted thereHometownLake In The H, IL