Dan Marino -- I Had a Love Child with a CBS Employee

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.”

He continues, "My wife and I have been married for almost 30 years and have six children together. And we continue to be a strong and loving family."