Tennessee Titans rookie quarterback Marcus Mariota appears in a Nike ad that recreates a scene from the classic film "Animal House", with Mariota playing the role that late comedic legend John Belushi starred in.

The Miami Dolphins signed running back Jonas Gray to their active roster. The former New England Patriots back was previously on the team's practice squad.

Less than a week after being cut by the New England Patriots, running back Jonas Gray has found a new home, but it isn't on a team's active roster. Gray is on the Dolphins' practice squad.

Are rising young quarterbacks Blake Bortles and Marcus Mariota ready to make waves in the AFC South? Bucky Brooks provides one last installment of AFC preseason player grades.

Mike Tannenbaum was blunt when discussing Miami Dolphins running back Jay Ajayi's prospects this season: If the rookie can't pass protect he won't be active on Sundays.

In the latest edition of Committee Meetings, Matt Franciscovich explains why Lamar Miller gets an upgrade, Andre Ellington is a potential draft bargain and more backfield developments from training camp.

Minnesota Vikings fans will have to wait until the regular season to see Adrian Peterson. The running back is not expected to play during the preseason.

Which college football program is best at producing NFL running backs? We're taking a look back at the past 15 NFL drafts to determine which school is the real "RB U."

Sorting out the backfields of NFL rosters can be a difficult task. NFL Fantasy is here to help, with a complete breakdown of all 32 NFL backfields to help you prep for the fantasy football season.

The Miami Dolphins drafted Jay Ajayi on Saturday. The former Boise State running back fell to the fifth round because of knee concerns.

The Miami Dolphins re-signed hard-hitting safety Louis Delmas, who missed the end of the 2014 season with an ACL tear. Delmas will sign a one-year deal worth up to $3.5M.

NFL Media analyst Bucky Brooks examines a few of the Philadelphia Eagles' best draft options at running back in the wake of the LeSean McCoy trade.

LaMichael James has decided the Bay Area isn't right for him. Stuck at third string on the depth chart, the former Oregon Duck requested and was granted his release from the San Francisco 49ers.

The Baltimore Ravens saw a few players leave the game with injuries during Saturday's preseason game against the Dallas Cowboys. Ray Rice had an X-ray on his shoulder, which came up negative.

Real, live football is back! And in the first week of preseason action, Adam Schein thoroughly enjoyed watching veteran DeMarcus Ware and rookie Carlos Hyde, as well as seven other players.

We take a look at each of the six preseason games tonight to deliver all the fantasy insight needed to prepare for your draft. Get a pen and paper handy, you'll want to take notes.

Michael Vick and Geno Smith taking the field is one of the top storylines of Thursday's slate of preseason games. Marc Sessler details what you should look out for in each matchup.

San Francisco 49ers running back Marcus Lattimore has yet to be activated, but coach Jim Harbaugh assured reporters on Friday that last year's fourth-round pick has already earned a spot with the team.

We dive into the wild world of running back committees once again as training camp battles play out this summer. Curious about the Law Firm, CJ2K, Doug Martin and more? Find out more here.

In the latest Training Camp Fantasy Notebook, Matt Forte wants to buck the trend of older running backs in decline. We check in on some of the QB competitions around the league.

When teams start practicing, it's inevitable that players will suffer injuries. Make sure you stay up to date with the latest injures around the NFL so your fanatsy roster isn't on ice come draft day.

Teddy Bridgewater's stealing reps from Matt Cassel in Minnesota and Vick Ballard's injury was a huge hit to Indianapolis' backfield. Who else saw their stock rise and fall?