RB Kenny Irons may be the fantasy rookie sleeper in the division.

1/18 Leon Hall, CB, Michigan
On a team that desperately needs character guys, Leon Hall provides great ethic to go with solid numbers.  In 2006, Hall tallied 45 tackles, three interceptions and 15 passes defensed.  The only knock against the rookie is his inability to keep up with deep threats a la Ted Ginn, Jr.  As long as the Bengals give him some help over top, Hall should be able to get a ton of snaps as a cornerback at either the expense of Deltha O’Neal or Johnathan Joseph.

2/49 Kenny Irons, RB, Auburn
Though only 5’10” and 203 lbs, Irons boasts a ton of quickness and body control.  In 2006, Irons had 893 yards and four touchdowns on 198 carries.  At this point, Irons will do more damage to the fantasy value of Rudi Johnson than he will help himself.  Johnson owners will have to decide what to do between Irons and colleague Chris Perry, as both are bound to get some carries.  Long term, Irons may be a solid option in all dynasty formats as Perry hasn’t been able to stay healthy.  Regardless, Irons is definitely a player to keep an eye on as he may be the cause of a lot of heartache for those taking Johnson in the first round.  Irons is the rookie to watch this season from the AFC North. 

4/114 Marvin White, S, TCU
Madieu Williams was one of bigger IDP sleepers last season, and for good reason as he  recorded double-digit tackles on more than one occasion.  This year, Williams will be supported by Marvin White who will bring his big-hitting and solid pursuit angles to camp.  Scouts consider White to be a raw talent with some solid upside for the future.  For now, look elsewhere on your DB rankings. 

5/151 Jeff Rowe, QB, Nevada
When Carson Palmer is the quarterback ahead of you on the depth chart, you’re not likely to get much playing time.  When Doug Johnson is also ahead of you, you may as well get your clipboard personalized because you’ll be wearing a headset more than a helmet.  This obviously doesn’t bode well for fantasy value. 

6/187 Matt Toeaina, DT, Oregon
A stocky former Duck out of Oregon, Toeaina brings his 307 lb. frame to the Bengals where he joins a slew of other defensive tackles.  Unfortunately for the big man, he lacks ideal speed for the NFL and will have to develop a ton of skill to make up for the shortcomings.  He’ll likely see some snaps in short-yardage situations due to his ability to plug holes, but that is about it. 

7/230 Dan Santucci, OG, Notre Dame
The first of two Notre Dame selections for the Bengals, Santucci will likely pan out to be nothing more than a back-up guard or center.  While any addition to the offensive line means good things for Palmer and the slew of running backs, this one may not get to help the cause very often. 

7/253 Nedu Ndukwe, S, Notre Dame
When you come into college as a wide receiver and you’re told it’d be better for you to be a defensive back, it likely doesn’t say much about your route running abilities.  And while Ndukwe won’t necessarily have to run routes, he’ll have to cover them at times.  Thankfully, Ndukewe’s strength is in run coverage, as he recorded 98 tackles last season.  His fundamentals need to improve from his switch, but he should at least be able to pass John Busing on the depth chart.