The Dallas Cowboys and Detroit Lions have made trade inquiries about Pittsburgh Steelers cornerback Joey Porter Jr., league sources told ESPN. The Steelers are willing to listen to offers but would seek strong compensation for the fourth-year star. Porter has been seeking a new contract, but the Steelers do not negotiate deals during the season, raising trade speculation.

The Cowboys have heavily overhauled their defense, acquiring Quinnen Williams, Rashan Gary and Kenny Clark, but remain thin at cornerback. Starting cornerback Cobie Durant is sidelined with a hamstring injury for Week 3 against the Baltimore Ravens. The Lions, who have yielded the second-most passing yards in the NFL over the first two weeks, are also without injured safeties Brian Branch and Kerby Joseph, plus cornerback Avonte Maddox, who is out for the season with a foot injury.

Porter has not played this season while recovering from a back injury and is listed as questionable for Sunday's game against the Cincinnati Bengals.