San Francisco 49ers head coach Jim Harbaugh, right, argues with an official during the second quarter of an NFL preseason football game against the Denver Broncos in Denver, Sunday, Aug. 26, 2012. (AP Photo/Joe Mahoney)

Associated Press
San Francisco 49ers head coach Jim Harbaugh, right, argues with an official during the second quarter of an NFL preseason football game against the Denver Broncos in Denver, Sunday, Aug. 26, 2012. (AP Photo/Joe Mahoney)
San Francisco 49ers head coach Jim Harbaugh, right, argues with an official during the second quarter of an NFL preseason football game against the Denver Broncos in Denver, Sunday, Aug. 26, 2012. (AP Photo/Joe Mahoney)
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