# Kerby Joseph knee injury and recovery > Live situation record from CLSTR: https://clstr.news/situations/kerby-joseph-knee-injury-and-recovery > Updated: 2026-09-08T16:19:00.000Z. Sources: 3. Developments: 3. Detroit Lions safety Kerby Joseph has been managing a knee injury that limited his availability during the 2025 season. Following his placement on the Physically Unable to Perform (PUP) list, external speculation arose regarding the severity of the injury, with some analysts suggesting potential long-term health risks that could impact his career. Head coach Dan Campbell has noted that Joseph’s rehabilitation is progressing well, though the player has also been managing a personal issue. Joseph, who missed the final 11 games of the previous season due to knee problems, is reportedly on a similar recovery timeline to teammate Brian Branch, who is rehabbing a torn Achilles. As the 2026 season approaches, both Joseph and Branch remain on the Reserve/PUP list, guaranteeing they will miss at least the first four games of the campaign. Joseph has since returned to the team facility in Allen Park to continue his rehabilitation. Safeties coach Jim O’Neill reported that both players are making significant progress, stating they are “crushing rehab.” To manage the absence of their primary safeties, the Lions have utilized veteran Chuck Clark and increased the role of Avonte Maddox during training camp. ## Timeline ### 2026-09-08: Detroit Lions safeties Kerby Joseph and Brian Branch provide injury updates Detroit Lions safeties Kerby Joseph and Brian Branch have returned to rehabilitation efforts but will miss at least the first four games of the season while on the PUP list. 2 sources. https://clstr.news/cluster/detroit-lions-safeties-kerby-joseph-and-brian-branch-provide-injury-updates ### 2026-08-11: Detroit Lions safety Kerby Joseph progressing in rehab despite personal issue Detroit Lions head coach Dan Campbell reports that safety Kerby Joseph is making progress in knee rehab but is also managing a personal issue, likely delaying his return until later in the season. 2 sources. https://clstr.news/cluster/detroit-lions-safety-kerby-joseph-progressing-in-rehab-despite-personal-issue ### 2026-07-31: Kerby Joseph's Knee Injury Fuels Retirement Rumors Detroit Lions safety Kerby Joseph is on the PUP list after a knee injury; doctor Jimmy Liao, without examining him, warned the damage could lead to retirement. 2 sources. https://clstr.news/cluster/kerby-josephs-knee-injury-fuels-retirement-rumors --- Cite as: Kerby Joseph knee injury and recovery. CLSTR, https://clstr.news/situations/kerby-joseph-knee-injury-and-recovery