Jackson (quadriceps) practiced Wednesday, James Boyd of The Athletic reports.
While the extent of the running back's participation isn't yet officially known, Boyd relays that Jackson, along with Jonathan Taylor (ankle) and Nyheim Hines (concussion), participated Wednesday in their normal practice gear. With Taylor and Hines combining to play three snaps over the Colts' last two games due to their injuries, Jackson has been a stellar replacement, totaling 39 touches for 222 yards and one score. However, Jackson picked up a quad issue late in the team's Week 6 win over Jacksonville and may not be a lock to make it back in action for Sunday's game in Tennessee. Even if he does, Jackson may find himself back in the third spot on the depth chart, as Taylor and Hines both appear to be trending toward returns Sunday at this early stage of the week.