The 27-year-old Karim appeared in three games as a reserve for Indianapolis in 2012. He has also had stints with Jacksonville (2010-2011) and Houston (2013). He has rushed 110 times for 341 yards and caught 18 passes for 129 yards in 33 career NFL regular season games.
Meggett played one snap on special teams in the Colts’ 27-26 loss to the Giants on Saturday night.
Seven of the Colts’ 90 players on the active roster are tailbacks. However, running back Vick Ballard (Achilles) is likely bound for injured reserve.