Former NFL head coach and current ESPN analyst, Jon Gruden, speaks with Bryant Gumbel about his football obsession. Real Sports debuts Tues., Aug. 21 at 9pm ET/PT on HBO. For more information on HBO Sports, visit http://itsh.bo/HKXeb8.<br /><br />Watch HBO Sports series and events online at HBO GO® http://itsh.bo/mqq7g6.<br /><br />Connect with HBO Sports on Facebook<br />http://www.facebook.com/hbosports
