Jackson (knee) has been ruled out for Sunday's game against the Raiders.
With Jonathan Taylor (ankle) having practiced fully Thursday and Friday, the Colts are in line to have their top back available this weekend. Taylor's return helps soften the blow of the absence of Jackson, who now looks to be the team's top backup running back after last week's trade that sent Nyheim Hines to Buffalo. With Jackson out of the mix for Week 10, however, the Colts' backup options are newcomer Zack Moss as well as current practice-squad members Jordan Wilkins and Jake Funk.