Rashard Mendendall, who at 25 years old and with two 1,000-yard rushing seasons will be one of the youngest and most accomplished running backs to hit the free-agent market Tuesday, has drawn interest from the Broncos. The level of the Broncos’ interest in Mendenhall is difficult to gauge. They have a menu of 12 to 15 free agent players who they believe could fit their roster under the right circumstances and for the right price. While contacting agents of these free-agent players, the Broncos to date have said little more than they have some interest and they’ll back to them later. Free-agent discussions figure to intensify Monday with the market officially opening at 2 p.m. MDT Tuesday. The Broncos are interested in signing a cornerback and running back. They may also seek depth at safety, receiver, defensive tackle, offensive line and possibily defensive end if they can’t work out a reduced contract with Elvis Dumervil. Mendenhall makes sense for the Broncos because at 225 pounds he’s the type of larger-sized back the team needs to replace Willis McGahee, who remains under contract but is 31 and coming off a season-ending leg injury. Mendenhall was selected by the Pittsburgh Steelers in the first round of the 2008 draft out of Illinois, where he was a one-year starter. He averaged 1,103 yards in the three-year period from 2009-11, but he suffered a torn ACL in the final game of the 2011 season.