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The NFL has become more of a passing league over the years, but running back continues to be valued in 2020 Fantasy football rankings. There are also several rookies set to challenge established veterans this season. J.K. Dobbins will vie for carries with Mark Ingram in Baltimore, Zack Moss and Devin Singletary will compete for playing time in Buffalo, Jonathan Taylor and Marlon Mack will fight for first-team reps in Indianapolis, and D'Andre Swift will hope to establish himself as the top running back in Detroit over Kerryon Johnson. But which 2020 Fantasy football rookies should you target?

If you're spending an early pick on a player who ends up being one of the biggest 2020 Fantasy football sleepers, it could be a major boost to your championship hopes. Before going on the clock this season, be sure to see the latest Fantasy football rankings 2020 and cheat sheets from the team at SportsLine, given the success they've had in calling sleepers like Titans running back Derrick Henry

The team at SportsLine was all over Henry from the start in 2019. He was going off the board around the fifth round, but SportsLine had him ranked as a top-20 back and graded him higher than multiple running backs who were picked in the third round on average. The result: Henry finished as the 2019 rushing champion and as the No. 2 Fantasy running back. Fantasy players who followed SportsLine's advice got a season-defining steal. 

The same model has a proven track record providing Fantasy football tips, calling past sleepers like Christian McCaffrey and Alvin Kamara in 2018, as well as Davante Adams in 2017. Anybody who banked on players such as those likely made a run at their league title. This same model is power by the same people who generated projections for all three major Fantasy companies, and it beat human experts last season when there was a big difference in ranking. The projections update multiple times daily, so you're always getting the best Fantasy football advice.

Now, SportsLine has simulated the entire NFL season 10,000 times and released its latest 2020 Fantasy football rankings, along with plenty of sleepers, breakouts and busts. Head to SportsLine now to see them

Top 2020 Fantasy football sleepers 

SportsLine's Fantasy football rankings 2020 and cheat sheets are all over Titans quarterback Ryan Tannehill. Even though Tennessee is committed to the run game, the Titans showed how important they think Tannehill is to the offense by extending his contract four years this offseason. He earned that deal after completing 70.3 percent of his passes for 2,742 yards, 22 touchdowns and just six interceptions in 12 games last season in relief of a struggling Marcus Mariota

Fantasy players, however, have largely faded him, waiting until pick No. 132 overall to take him, according to the latest 2020 Fantasy football ADP. SportsLine's model, however, says he's undervalued at that point.

In fact, he's projected to produce more than quarterbacks like Kirk Cousins (ADP of 120), Joe Burrow (110) and Matthew Stafford (121), all of whom are going off the board at least 10 picks earlier on average.

Another sleeper that SportsLine's Fantasy football rankings 2020 have identified: Patriots quarterback Cam Newton. The former NFL MVP hasn't been the same because of shoulder issues and a foot injury that cost him most of the 2020 season. That inevitably contributed to his contract not being renewed in Carolina. 

However, after a lengthy free agency process, Newton saw an opportunity to compete for a starting job in New England after Tom Brady left for the Buccaneers. He's looked healthy in workout videos he's posted on social media. Josh McDaniels should help cater the offense to Newton's skills, while his ability as a goal-line runner (58 rushing touchdowns) adds even more Fantasy value. That's why SportsLine's model ranks him ahead of Jared Goff, Daniel Jones and Joe Burrow, who are all being drafted ahead of Newton in CBS Sports Fantasy football leagues.

How to find 2020 Fantasy football rankings 

SportsLine is also extremely high on an overlooked wide receiver going off in the middle rounds of 2020 Fantasy football drafts. This receiver is ranked in the top 10 at his position and in line to outperform receivers being taken much earlier like Mike Evans and Adam Thielen. You can only see who it is, and the 2020 Fantasy football rankings for every player, at SportsLine.

So what 2020 Fantasy football sleepers should you snatch in your draft? And which WR1 candidate can you wait on until late? Visit SportsLine now to get 2020 Fantasy Football cheat sheets from the model that was all over Derrick Henry's huge season, and find out.