At 4 p.m. ET on March 18, the NFL will begin a new year, and free agents will be allowed to officially sign with new teams.



To preview this year’s class, here is a look at the top 100 pending unrestricted free agents. We will provide updated rankings in the weeks ahead as franchise and transition tags are assigned and players re-sign with their current teams. Factors taken into account: age, positional value, the market, production and injury history.



All stats are courtesy of SportRadar unless otherwise noted. The number in parentheses is the player’s age at the start of next season.



1. Dak Prescott, QB, Cowboys (27)



One way or another, Prescott is expected to be back with the Cowboys. He’s coming off a season in which he completed 65.1% of his passes, averaged 8.2 YPA and threw 30 touchdowns to 11 interceptions. Prescott ranked sixth in adjusted net yards per attempt (ANY/A) and fourth in QBR. He’s never missed a game due to...