What happened: The cornerback is entering the final season of his rookie contract. Pittsburgh coach Mike McCarthy said Aug. 24 that the sides are at an impasse.
Why it matters: The timing leaves Pittsburgh's secondary unsettled ahead of its Sept. 13 opener. Three other members of the Steelers' 2023 draft class have secured new deals.
By the numbers: Porter has three interceptions across three NFL seasons.
What to watch: Watch for an offer or a change in Porter's PUP status before the regular season begins.