Knowles (undisclosed) was spotted on the sidelines of Monday's camp session, Alec Lewis of The Athletic reports.
Knowles, an undrafted second-year wide receiver out of Kansas State, had been dealing with an undisclosed injury over the past week. It seems as if he could be nearing a return to the field, and once he does, Knowles is expected to compete for a depth spot in Minnesota's wide receiver corps.