Retired Detroit Lions football players Calvin Johnson and Robert SIms talk about their entry in Michigan's marijuana industry. Kathleen Gray, Detroit Free Press Lansing Bureau
The NFL and HBO should soon reveal which team NFL Films will document for this summer's installment of the training camp series "Hard Knocks," though you might be surprised by how shallow the pool of options appears to be.
Often loathe to incur additional media obligations or — gasp! — potentially provide a competitive advantage while the cameras roll sunrise to sunset, the league's 32 clubs seem to avoid a "Hard Knocks" hitch like a running back who runs a 4.