Kelly signed with the Rams' practice squad Sunday, Vincent Bonsignore of The Athletic reports.
Kelly had a quiet preseason with 22 carries for 54 yards and four receptions for 23 yards, but he'll remain in Los Angeles after being waived Saturday. The 22-year-old spent four games on the 53-man roster in 2018, rushing 27 times for 74 yards while catching two passes for 27 yards.