Williams amassed 27 rushes for 142 yards and one touchdown during the 2015 campaign.
Williams spent much of the campaign on the Cardinals' practice squad, but his elevation to the 53-man roster on Dec. 1 was precipitated by injuries to both Chris Johnson (tibia) and Andre Ellington in Week 12. From Weeks 13 through 16, Williams worked as David Johnson's primary backup, notching all but three of his rushing yards on the season. Across six appearances total, Williams also recorded two catches (on two targets) for 16 yards, while taking eight kickoffs for 126 yards (or 15.8 yards per return). With one year remaining on his contract, expect him to stick around as a depth option, though the backfield is now the domain of David Johnson.