Armstead is active for Sunday's game against the Patriots.
Armstead was a healthy scratch Week 16 after inking a deal with the Jags a few days prior, but he's now set to see his first game action since 2019. The 25-year-old should operate as Jacksonville's No. 2 tailback behind starter Dare Ogunbowale, as the only other running back active is Nathan Cottrell, who is up from the practice squad.