Call Calvin Johnson old. Call him overpaid. Say his highlight-reel production is in decline. But the Lions' star receiver doesn't seem to care about those theories. He seems to worry about those criticisms as much as he would to a slow, undersized cornerback nipping at his heels. "I'm just playing my game," he said. "Doing what I set out to do." The assertion the eight-year veteran makes himself is that two months from his 30th birthday he still has big seasons left. "No doubt," he said. "What did I miss, four, almost five games last year? Still came up with just over 1,000 (yards). I still have some (good years) left." And about that 30th birthday? Johnson isn't concerned about any increased difficulty in gearing up for the season at such an advanced age. - See more at: http://www.freep.com/story/sports/nfl/lions/2015/07/09/detroit-lions-calvin-johnson/29946597/
