Gronkowski (back) didn't take part in the portion of Thursday's practice that was open to the media and was running off to the side under the supervision of trainers, Rick Stroud of the Tampa Bay Times reports.

EDGE Analysis

Gronkowski was listed as a non-participant on Wednesday's report after he was able to perform only mobility work off to the side, so he'll presumably be listed the same way Thursday. The back-to-back DNPs are an early sign that he's not on track to play this weekend in Washington, but don't expect head coach Bruce Arians to formally rule Gronkowski out until after the team's final practice of the week Friday. If Gronkowski is sidelined for the fifth game of the season, O.J. Howard and Cameron Brate would likely split the reps at tight end once again.