The Broncos have engaged in discussions regarding a draft trade for USC quarterback Mark Sanchez, according to an NFL source. In possession of the No. 12 and No. 18 overall picks in the NFL draft, which begins Saturday, the Broncos understand they may have to move up to snag Sanchez, who is drawing interest from several teams. One possible trade partner is the Jacksonville Jaguars, who want to drop down from No. 8 overall. The problem for the Broncos is teams picking higher than Jacksonville are considering drafting Sanchez with the idea of flipping him in trade. The higher Sanchez is selected, the more lucrative his contract and the less likely the Broncos could afford him. The Broncos also made preliminary inquiries about Brady Quinn but were told the Cleveland Browns' third-year quarterback was not available for trade.