The St. Louis Rams agreed in principle Saturday to trading the No. 2 pick of the draft to the Washington Redskins for three first-round selections.

The Redskins are paying a hefty price to move into position to take Heisman Trophy winner Robert Griffin III. They're giving the Rams their first- and second-round selections this year, plus first-round picks in 2013 and 2014.

Chief operating officer Kevin Demoff confirmed to The Associated Press details of the trade, which cannot be completed until Tuesday. FOXsports.com and ESPN.com first reported details of the agreement Friday night. (MORE>>>)