DETROIT, MI - DECEMBER 27: Calvin Johnson #81 of the Detroit Lions warms up prior to the game against the San Francisco 49ers at Ford Field on December 27, 2015 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)
DETROIT, MI - DECEMBER 27: Calvin Johnson #81 of the Detroit Lions warms up prior to the game against the San Francisco 49ers at Ford Field on December 27, 2015 in Detroit, Michigan. (Photo by Gregory Shamus/Getty Images)