Johnson started last year on the practice squad, was activated on Oct. 20 and finished with 45 regular season/playoff carries and eight regular-season kick returns. In 72 career games, he has 238 rushes for 1,057 yards (4.4-yard average) and four touchdowns, and 93 catches for 730 yards and four touchdowns. Davis was drafted in the fourth round (No. 128 overall) after a five-year career at Temple, Vanderbilt and Kentucky. He rushed 746 times for 3,626 yards (4.86-yard average) and 29 touchdowns.