The Lions are planning to decrease Terrion Arnold
‘s role with the second-year cornerback struggling to contain opposing receivers to start the year. 
Defensive coordinator Kelvin Sheppard said on Thursday (via Dave Birkett of the Detroit Free Press ) that veteran Amik Robertson would take on a higher snap share at outside cornerback with Arnold seeing a commensurate decrease in his workload.
Robertson primarily aligned as a nickel corner in 2024 and led the team in slot snaps, per Pro Football Focus (subscription required ). The Lions’ heavy use of base personnel on defense has limited Robertson’s role this year, per Birkett, and the team wants to get him on the field for more plays.
Sheppard said that the cornerback change “has nothing to do with [Arnold’s] play or performance,” but it’s hard to deny that the 2024 first-rounder has taken a step back from his rookie year. In 2024, he allowed a 55.6% completion rate and 7.3 yards per target; those numbers have jumped to 72.6% and 11.0 this year, respectively. He also leads all NFL cornerbacks in yards allowed, per PFF .
The 2025 offseason saw Carlton Davis depart on the open market. D.J. Reed was brought in as a replacement, and the eighth-year veteran inked a similar contract (three years, $48MM) to the one Davis took in New England. Reed has operated as a full-time perimeter starter so far with Detroit; that can certainly be expected to continue moving forward. 2024 second-rounder Ennis Rakestraw , meanwhile, is out for the season after undergoing shoulder surgery in August.
Arnold’s rookie contract runs through 2027. The 22-year-old’s tenure in the Motor City could continue beyond that point with his fifth-year option being picked up and/or a long-term extension being finalized. Neither of those can take place until after the 2026 season, so the Lions have plenty of time before needing to make a decision on Arnold’s future with the team. For now, it will be interesting to see how this change in workload will affect Detroit’s secondary.
Adam La Rose contributed to this post.