Waddle was present for practice Tuesday but didn't participate, Adam H. Beasley of Pro Football Network reports.
That usually suggests a minor injury, although the team hasn't announced anything. Waddle was held out of the preseason opener against Tampa Bay along with other starters, and it's unclear if he will be in the lineup for the Dolphins' second exhibition Saturday against Las Vegas. Coach Mike McDaniel said Tuesday that he didn't want to reveal his plan, at least not yet.