The 49ers later announced that the deal is for one year. The team made room on the roster by releasing cornerback Briean Boddy-Calhoun.
Jefferson has not played since Week 5 of the 2019 season when he suffered a torn ACL. The Ravens released him on February 14, 2020. The defender underwent a physical while visiting with the 49ers earlier this offseason.
The Arizona Cardinals signed Jefferson as an undrafted free agent out of Oklahoma in 2013. He registered 21 tackles and three passes defensed through his five games in 2019, per Pro Football Reference.
Jefferson, 29, has recorded 451 tackles, 8.5 sacks, 22 passes defensed, four interceptions, a touchdown, and eight forced fumbles through his seven NFL seasons.
Boddy-Calhoun appeared in one game with the 49ers in 2020 and spent time on the team's practice squad before being waived on December 14, 2020. He re-signed with the team on March 17.
Related News
More San Francisco 49ers News
-
Only one 49ers player leads position group in Pro Bowl voting
The NFL Communications staff released the latest voting results for the 2026 Pro Bowl Games, with the AFC and NFC rosters set to be unveiled Tuesday morning. Among the San Francisco 49ers, only one player currently leads his position group: fullback Kyle Juszczyk. Selections... -
What Kyle Shanahan and others said after 49ers' 42-38 win vs. Bears
San Francisco 49ers head coach Kyle Shanahan and several others spoke with reporters after Sunday night's 42-38 Week 17 win over the Chicago Bears. Here is what they said. Transcripts provided by the San Francisco 49ers Communications staff. 49ers Head Coach Kyle... -
Key stats from the 49ers' 48-27 Week 16 win vs. the Colts
The San Francisco 49ers improved to 11-4 on the season after a 48-27 Week 16 win over the Indianapolis Colts at Lucas Oil Stadium in Indianapolis, Indiana. Below are several statistics and notes from Monday's game, which were provided by the 49ers Communications staff. With... -
49ers' Trent Williams on NFL future: 'I'm nowhere near done'
San Francisco 49ers left tackle Trent Williams is not contemplating retirement anytime soon. Despite being 37 years old, Williams continues to perform at an elite level and believes he still has plenty of football left in him. Williams has earned a Pro Football Focus grade...