Retired receiver Calvin Johnson explains why he'll never play in the NFL again
Former Detroit Lions All-Pro Calvin Johnson happy in retirement - ESPN - Detroit Lions Blog- ESPN
Calvin Johnson reaffirms retirement decision: 'I'm not coming back'
AFC Notes: Bills, McCoy, Browns, Pryor, RG3
Calvin Johnson: I'm not coming back - NBC Sports
Calvin Johnson on return to the NFL: 'I'm not coming back, man'
Calvin Johnson isn't coming back and he's serious about that
Calvin Johnson has no interest in NFL comeback
Jaguars reportedly interested in trading for Calvin Johnson - Big Cat Country
Disappointed when Riddler…. : r/DC_Cinematic
NFL trade rumors: Teams have approached Lions about dealing Calvin Johnson - Pride Of Detroit