Jackson has been sidelined for the Rams' last two practices due to a soft tissue injury, Stu Jackson of the Rams' official site reports.
The severity of Jackson's injury is not known at this time, but it looks like Los Angeles is opting to err on the side of caution. The rookie was selected in the fifth round of this year's draft and is competing for a depth outside linebacker role on the 53-man roster. A return to practice sooner than later would be advantageous for his chances.