Knowles (undisclosed) was spotted on the sidelines of Monday's camp session, Alec Lewis of The Athletic reports.

Advice: 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. Rotowire.com 11 minutes ago

Palmer has been a regular presence on the first-team offense at training camp, Daniel Popper of The Athletic reports.

Advice: Palmer, Ladd McConkey and DJ Chark reportedly are dominating WR reps on the starting offense, leaving Quentin Johnston and others to work with the backups. Palmer averaged a career-high 58.1 receiving yards per game last season, including 70.6 ypg from Week 3 onward, but a knee injury and concussion led to seven absences. After some hints of limited participation in the offseason program, Palmer seems to be back at 100 percent for training camp and is regularly catching passes from QB Justin Herbert. There's opportunity for the 2021 third-round pick to enjoy a fourth-year breakout, although he's probably looking at reduced team passing volume relative to prior years now that head coach John Harbaugh and offensive coordinator Greg Roman are running the show in Los Angeles. Rotowire.com 25 minutes ago

Johnson (foot) ran on a side field Wednesday, Jeff Nowak of WWLAMN reports.

Advice: This is the latest sign of progress, with Johnson apparently upping the intensity of his workouts after reporters spotted him jogging Wednesday. It's unclear if he'll be ready by Week 1, but the quick return to physical activity after mid-June surgery at least suggests his foot injury was relatively minor and not something more serious like a Jones fracture. Rotowire.com 45 minutes ago