NFL legend Dan Marino -- a pregame analyst for CBS -- just admitted he knocked up a CBS Sports production assistant in 2004 ... while he was still married to his wife.
The baby mama is Donna Savattere -- who was 35-years-old at the time of the affair. Savattere gave birth to a daughter in 2005 .... Dan's 7th child. He has 6 with his current wife Claire ... to whom he's been married for the past 28 years.
Marino released a statement to the NY Post ... saying, "I take full responsibility both personally and financially for my actions now as I did then. We mutually agreed to keep our arrangement private to protect all parties involved.”