Detroit Lions running back Jahmyr Gibbs is not participating in practice during the team’s first day of training camp amid contract uncertainty, according to multiple reports. One outlet notes that Gibbs is absent from the opening practice, while another adds that he reports to camp but skips workouts. The reports describe the situation as a potential holdout as Gibbs negotiates a new long-term contract extension. He is described as a Pro Bowl-caliber player and as being due for a substantial contract change. The coverage aligns on the timing—Gibbs is present at training camp but does not take part in practice—and on the central reason—ongoing negotiations and contract uncertainty. None of the sources provide details on a final agreement or a return date, and they do not specify whether he is missing only the first practice session or additional workouts. Team or league sources beyond the initial reporting are not included in the provided excerpts.