The San Francisco 49ers have placed defensive end Drake Jackson on the reserve/PUP list, effectively ending his 2024 season due to a knee injury that required surgery. Jackson, a former second-round pick, has recorded six sacks and 21 tackles during his two seasons with the team. In response to Jackson's placement, the 49ers signed defensive back Tracy Walker III, who has spent his entire six-year career with the Detroit Lions. Additionally, wide receiver Malik Turner has been placed on injured reserve, which will prevent him from playing this season unless he is waived with an injury settlement. Turner had a brief tenure with the 49ers in 2022, recording no statistics over three games. Both players' injuries represent significant roster challenges for the 49ers as they prepare for the season ahead.