The Colts announced the signing of RB Phillip Tanner and LB Jonathon Sharpe on Tuesday.
Tanner, 25, recently worked out for the Seahawks. He signed with the Cowboys as an undrafted free agent out of Middle Tennessee State back in 2011.
Tanner has appeared in 39 regular season games over the course of his three-year NFL career and has totaled 149 yards rushing on 56 carries (2.7 YPC) and two touchdowns.
Sharpe participated in the 2014 Super Regional Combine. He began his college career at Wofford College before transferring to North Greenville University.
He totaled 132 tackles, including 23.5 for a loss, 5.5 sacks and three interceptions during two seasons at NGU.