Former NFL coach Dennis Green dies at age 67 Posted Jul 22, 2016 Dennis Green, who coached the Minnesota Vikings and Arizona Cardinals over 13 NFL seasons, died Thursday at the age of 67. "Dennis passed away last night from complications of cardiac arrest," Green's family said in a statement. "His family was by his side and he fought hard." Green's Vikings made eight playoff appearances in 10 seasons from 1992 to 2001. (ESPN.com)