Klee: As NFL opener nears, Broncos should play it safe at running back

Denver Broncos running back Jeremiah Johnson (37) drives for a first quarter touchdown as Arizona Cardinals cornerback Justin Bethel (31) tries to stop him during a preseason NFL football game, Thursday, Aug. 29, 2013, in Denver. (AP Photo/Joe Mahoney)
Denver Broncos running back Jeremiah Johnson (37) drives for a first quarter touchdown as Arizona Cardinals cornerback Justin Bethel (31) tries to stop him during a preseason NFL football game, Thursday, Aug. 29, 2013, in Denver. (AP Photo/Joe Mahoney)
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