The San Francisco 49ers announced on Tuesday that they have signed defensive back Jarnor Jones to the team's practice squad and released linebacker Ben Boulware.

Jones (6-3, 209) was originally signed by the Atlanta Falcons as an undrafted free agent on May 1, 2017 and later waived by the team on September 1. 

A 23-year-old native of Lithonia, GA, Jones attended Iowa State University for two seasons (2015-16) after previous stops at North Carolina State University (2012-13) and Georgia Military College (2014). With the Cyclones, he appeared in 24 games (11 starts) and registered 78 tackles, 11 passes defensed, three sacks and one interception.

Boulware (6-1, 235) originally signed to the team's practice squad on September 5, 2017.