Calvin Johnson definitely had his long-term health in mind when he decided to retire in March at the age of 30.
In an interview with ESPN's "E:60," the former Lions receiver said he loved playing football and will miss the game, but grew tired of being in constant pain.
"I know where my body's at, know how it feels, you know," he said in an interview that will air Thursday night. "I know how it felt to one, get it to go every day. And to be out there actually doing it every day, you know — the pain to do it.