Making the right call on rookies is one of the toughest parts of preparing for the season. The right call can make your season, but picking one early who doesn't produce can sink your postseason hopes.

Before you make any decisions in Fantasy football dynasty leagues, you'll want to see Dave Richard's analysis and breakdown of the top rookies, as well as his rookie dynasty rankings.

Richard is a CBS Sports Senior Fantasy Writer, and a former Fantasy football writer for NFL.com. He's spent nearly his entire career covering the NFL and he continues to crunch the numbers, study film, develop tiers and trade charts, preview every NFL game and talk to decision makers. And he's done it with one goal in mind: to help you win your league.

This year, we can tell you Richard is high on Broncos tight end Noah Fant.

"Fant is a mismatch player the Broncos can use against slower linebackers and smaller safeties," Richard told SportsLine. "That was something he did a lot of in the red zone at Iowa, scoring 18 times over 69 catches his final two seasons. But he averaged just 40.5 yards per game and had plenty of mishaps. With very good speed and unique size, Fant has the athletic profile to dominate." 

Richard has also made the call on the top NFL rookies and revealed his top 50 rookie dynasty league rankings, which includes a major stunner in the top 10!

So which NFL rookies can you bank on in Fantasy? And which shocking rookie makes the top 10? ... Join SportsLine right now to see a complete Fantasy breakdown of all the top NFL rookies, all from one of the top Fantasy experts in the nation!