Over the last 13 seasons, there have been 409 instances where a right tackle played 300 or more pass-blocking snaps over a season, and among that group, three players from the 2018 season cracked the top 10 in terms of pass-blocking grade.

NFL Editor Mark Chichester takes an in-depth look at the play of Tampa Bay Buccaneers guard Ali Marpet.

PFF NFL editor Mark Chichester takes an in-depth look at the dominance of Texans edge defender J.J. Watt.

NFL Editor Mark Chichester looks at the wide receivers who earned above-average marks in separation percentage, contested-catch percentage and yards after the catch per reception in 2018.

NFL editor Mark Chichester looks at Vikings CB Mackensie Alexander and his excellent seven-game stretch to close out the 2018 season.

With the 2019 NFL season inching ever closer, PFF's Mark Chichester takes a look at the NFL's best safety duos.

With the 2019 NFL season inching ever closer, PFF's Mark Chichester takes a look at the NFL's best cornerback trios.

NFL editor Mark Chichester explains why an improvement in clean-pocket play is a must for Titans quarterback Marcus Mariota.

NFL editor Mark Chichester highlights 2018's best offensive lines on long-developing passing plays based on PFF's pass-blocking efficiency measurement.

NFL editor Mark Chichester takes a look back over the 13 seasons of play-by-play grading and details the best three-year stretches of the PFF era.

With the 2019 NFL season inching ever closer, PFF's Mark Chichester takes a look at the NFL's best edge-rushing duos.

There is a star in the Buffalo Bills secondary and his name is Micah Hyde. NFL editor Mark Chichester discusses Hyde's impressive two-year stretch at free safety.

With the 2019 NFL season inching ever closer, PFF's Mark Chichester takes a look at the NFL's best offensive guard duos.

With the 2019 NFL season inching ever closer, PFF's Mark Chichester takes a look at the NFL's top-five offensive tackle duos.

Seattle LB Bobby Wagner and Carolina LB Luke Kuechly ring in at No. 3 and No. 7, respectively, on the PFF50. NFL Editor Mark Chichester takes an in-depth look at the best two linebackers in the game.

Even though first-round edge defender Nick Bosa will be sidelined for the remainder of the offseason program with a hamstring injury, there's no need to for the 'Niners faithful to worry.

Cowboys center Travis Frederick lands at No. 29 on the PFF50, despite not playing a single snap last year. NFL Editor Mark Chichester explains why he's the anchor of Dallas' offensive line.

Ryan Ramczyk's work at right tackle has been exemplary over the past two seasons. NFL Editor Mark Chichester explains why the Saints tackle is gearing up for a big payday.

It's a make-it-or-break-it year for Jay Gruden and the Washington Redskins, so both team and coach alike will be hoping to see star TE Jordan Reed back to his best in 2019.

NFL editor Mark Chichester takes a closer look at the league's prototypical defensive backs for seven distinct roles heading into the 2019 NFL season.