Fantasy Football: Heath Cummings' positional tiers

Knowing Fantasy football tiers -- the groups of players such as "Tier 1 RBs" or "Tier 4 TEs" -- gives a you a huge edge in your draft.

And before you separate the safe high-end picks from the risky ones, you'll want to see Heath Cummings' Fantasy football positional tiers.

Cummings is a CBS Sports Senior Fantasy Writer, and a former Footballguys staff writer and host of The Fantasy Football Show on ESPN 1510 in Kansas City. He's one of the top Fantasy gootball minds in the nation and he specializes in detailed statistical analysis.

One positional tier we'll give away: Cummings is putting three quarterbacks -- Russell Wilson, Cam Newton and Kirk Cousins -- in his "Tier 3," which he categorizes as "elite upside paired with solid floor."

He's also revealed the rest of his tiers for QB, RB, WR and TE, and has a surprising pick in his Tier 3 of running backs, which he calls "risky RB1s." This a player many are banking on as a Tier 1-type player, but taking him high could be a huge gamble.

So what are the tiers for every position? And which running back flying off the board early in many leagues actually belongs in Tier 3? ... Join SportsLine now to see Heath Cummings' positional tiers, all from one of the top Fantasy football analysts in the nation.