Calvin Johnson, right, and business partner Rob Sims look over marijuana plants growing under special lights at their business in Webberville, Mich., Friday, June 4, 2021. The former Detroit Lions wide receiver has founded a cannabis business and is collaborating with Harvard University to research how marijuana can help people with CTE and chronic pain. (AP Photo/Carlos Osorio)

FILE - In this Nov. 26, 2015, file photo, Detroit Lions wide receiver Calvin Johnson (81), defended by Philadelphia Eagles cornerback Eric Rowe (32) , catches a pass for a touchdown during the second half of an NFL football game, in Detroit. Calvin Johnson is simply in awe that he will soon join Jim Brown and Gale Sayers as Pro Football Hall of Famers inducted at the age of 35 years old or younger. (AP Photo/Rick Osentoski, File)

Calvin Johnson is interviewed in Webberville, Mich. , Friday, June 4, 2021. Calvin Johnson is simply in awe that he will soon join Jim Brown and Gale Sayers as Pro Football Hall of Famers inducted at the age of 35 years old or younger. “That’s football royalty, man," Johnson said in an interview with The Associated Press. “When you hear those guys’ names, you’re just like, ‘Wow.’”(AP Photo/Carlos Osorio)

Calvin Johnson looks over marijuana plants growing at his business in Webberville, Mich., Friday, June 4, 2021. The former Detroit Lions wide receiver has founded a cannabis business and is collaborating with Harvard University to research how marijuana can help people with CTE and chronic pain. Johnson will be inducted into the Pro Football Hall of Fame on Aug. 8.(AP Photo/Carlos Osorio)

Calvin Johnson is interviewed in Webberville, Mich., Friday, June 4, 2021. Former Detroit Lions wide receiver Calvin Johnson, to be inducted into the Pro Football Hall of Fame on Aug. 8, has founded a cannabis business and is collaborating with Harvard University to research how marijuana can help people with CTE and chronic pain. (AP Photo/Carlos Osorio)

FILE - In this Oct. 26, 2008, file photo, Detroit Lions wide receiver Calvin Johnson makes catch against the Washington Redskins in the fourth quarter of an NFL football game in Detroit. Calvin Johnson is simply in awe that he will soon join Jim Brown and Gale Sayers as Pro Football Hall of Famers inducted at the age of 35 years old or younger. (AP Photo/Paul Sancya, File)