Treadwell failed to catch his lone target during Sunday's 9-6 win over Buffalo.
The 26-year-old saw action in his third game of 2021 and operated as Jacksonville's No. 4 wide receiver, playing 19 offensive snaps compared to Tavon Austin's seven. It didn't result in much involvement in the passing game, but Treadwell appears to have carved out a spot on the roster for now after spending the first two months of the season on the practice squad.