Swift's practice reps have been limited of late by a tight groin, Dave Birkett of the Detroit Free Press reports. "He's bound pretty tight and he runs hot, so we're trying to get him (good work) and then back him down," coach Dan Campbell said of the running back.
At this point, Swift's issue appears to be a minor one that the team is simply managing, with his Week 1 availability not a concern at this time. Swift currently heads the Detroit backfield depth chart, followed by Jamaal Williams and Jermar Jefferson, with Dedrick Mills and Michael Warren also in the mix.