McCaffrey (shoulder) won't participate in Wednesday's practice, Ian Rapoport of NFL Network reports.
Coach Matt Rhule gave McCaffrey the vague "day-to-day" label after the running back suffered a painful shoulder injury Sunday in the Panthers' 33-31 loss to the Chiefs. The outing was McCaffrey's first since Week 2, when he suffered a high-ankle sprain that sidelined him for the Panthers' next six games. While McCaffrey's shoulder issue doesn't yet look to be nearly as much of a concern, David Newton of ESPN.com notes that the 24-year-old is set to receive a second opinion on the injury, putting his availability for this weekend's game against the Buccaneers in doubt. McCaffrey will likely need to practice Thursday or Friday on at least a limited basis to have a realistic shot at playing against Tampa Bay, but if not, Mike Davis would step in as the Panthers' feature back.