"I think he definitely can play, and I would encourage Lovie to sign him if they had an opening," Dungy said Wednesday on the "Waddle & Silvy" show on ESPN 1000.
Dungy coached Harrison for seven seasons with the Indianapolis Colts. Dungy retired last year and is an NBC analyst. The 36-year-old Harrison is an eight-time Pro Bowl selection, and the free agent is waiting to catch on with a team.
"Marvin can play the game," Dungy said. "Marvin can get open and catch the ball.
"Marvin's whole thing is precision. He's a guy who needs work in a system."