Campbell (foot) was spotted working out on the side during the Colts' informal practice session Monday, Zak Keefer of The Athletic reports.
The wideout's workout didn't qualify as practicing, as the Colts would have to designate him for return from injured reserve in order for him to take part in drills alongside his healthy teammates. That being said, Campbell looks like he might be able to do just that within the next couple weeks, potentially setting himself up for a return to the 53-man roster during the postseason or perhaps even in Week 18 in a best-case scenario. Campbell hasn't played since Week 6 after undergoing foot surgery in mid-October.