Denver Broncos coach John Fox undergoes heart surgery

Miami Dolphins guard Richie Incognito (68) on the sidelines during the first half of an NFL football game against the Buffalo Bills, Sunday, Oct. 20, 2013, in Miami Gardens, Fla. (AP Photo/Wilfredo Lee)
Miami Dolphins guard Richie Incognito (68) on the sidelines during the first half of an NFL football game against the Buffalo Bills, Sunday, Oct. 20, 2013, in Miami Gardens, Fla. (AP Photo/Wilfredo Lee)
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