Coach Dan Campbell revealed Tuesday that he's concerned about Swift's conditioning and readiness for Week 1 as he works his way back from a groin injury, Tim Twentyman of the Lions' official site reports.

EDGE Analysis

It sounds like the concern is about workload/endurance more so than availability, but the latter could also come into question if Swift doesn't respond well on the practice field. To that end, he's scheduled for a rigorous practice Tuesday, perhaps getting a chance to ease some of Campbell's doubts. The second-year pro practiced Monday, with Chris Burke of The Athletic reporting afterward that Swift appeared on track for Week 1 against San Francisco.