Detroit Lions rookie cornerback Terrion Arnold exited Tuesday’s training camp practice with a hamstring injury, raising concerns about the team’s defensive depth as the preseason draws near.
The first-round pick in the 2024 NFL Draft was seen limping off the field early in the session after appearing to tweak his leg during individual drills. Trainers quickly attended to him, and he did not return to practice.
Arnold, who impressed during his rookie campaign, was expected to play a major role in Detroit’s secondary this season. After starting in several games in 2024 and posting 60 total tackles along with 10 passes defended, he solidified himself as a key contributor in the defensive backfield. His performance during the offseason had only strengthened the coaching staff’s confidence in his growth as a shutdown corner.
This isn’t the first injury concern for Arnold during this year’s training camp. He had previously dealt with a minor calf strain that caused him to miss part of last week’s practice sessions. However, this new setback—diagnosed as a hamstring issue—has prompted the Lions to approach his return with caution.
Detroit is already battling a number of injuries in the secondary. Cornerbacks Ennis Rakestraw Jr. (chest), Khalil Dorsey (leg), and Amik Robertson are all currently sidelined or limited. With such a thin group available, Arnold’s injury comes at a difficult time for defensive coordinator Aaron Glenn, who is working to solidify the defensive lineup ahead of the Hall of Fame Game against the Los Angeles Chargers this Friday.
Head coach Dan Campbell has not provided an official timeline for Arnold’s recovery but emphasized the importance of not rushing the young defender back too soon. “We’re going to be smart with Terrion,” Campbell said. “He’s a valuable part of what we’re building, and we want him right for the season, not just for camp reps.”
The Lions are expected to monitor Arnold’s progress over the next several days before determining whether he will participate in any preseason action. For now, the team will likely turn to younger players and depth options to step up in his absence.
As Detroit eyes a deeper playoff run in 2025, keeping Arnold healthy will be crucial for a secondary that’s already tested by injuries.
