Former Lions WR aims to alter game by The Associated Press | Today at 2:46 a.m. Calvin Johnson was a game-changing receiver who will be inducted into the Pro Football Hall of Fame this week. Now he and former Detroit Lions teammate Rob Sims have founded a cannabis research company, and created a collaboration with Harvard University to research how marijuana can help those with chronic pain. (AP file photo) WEBBERVILLE, Mich. -- Calvin Johnson is simply in awe that he will soon join Jim Brown and Gale Sayers as Pro Football Hall of Famers inducted at 35 years old or younger.