Overview

• The agreement follows a workout in Los Angeles this week that also included Rashad Weaver, who remains unsigned.
• Khalil Mack was placed on injured reserve, which mandates he miss at least four games after dislocating his elbow.
• Head coach Jim Harbaugh has said Mack’s injury is not expected to end his season.
• Bud Dupree is in line for expanded snaps opposite Tuli Tuipulotu, and fourth-round rookie Kyle Kennard could factor into the rotation.
• Ferrell recorded 3.5 sacks in each of the past two seasons with the 49ers and Commanders after re-signing with Washington on a one-year, $2 million deal before his August release.