See PFF's "About" page for more information on their grading system.

Offense

Best: Clint Boling (+2.4)
Other good grades: Kevin Zeitler (+1.9), Andre Smith (+1.8), Dennis Roland (+1.4, 16 snaps), Ryan Whalen (+1.3)

Worst: Trevor Robinson (-2.3)
Other bad grades: A.J. Green (-0.9)

Defense

Best: Michael Johnson (+2.2; +1.9 run defense, -0.5 pass rush)

Other good grades: Devon Still (+1.7), Wallace Gilberry (+1.2), Carlos Dunlap (+1.2), Geno Atkins (+1.0)

Worst: Rey Maualuga (-2.3; -1.4 pass coverage)
Other bad grades: Reggie Nelson (-1.9; -2.2 run defense), Terence Newman (-1.7), Vontaze Burfict(-1.6), Domata Peko (-1.5), Adam Jones (-1.3), Dan Skuta (-0.9)

Other performances of note, real-talk edition:

-Andy Dalton graded better than he looked (-0.7)

-A.J. Green's receiving grade (-1.4) was a career low

-Jermaine Gresham (-0.6) hasn't graded positively since the first week of the season, and is negative overall in all phases of his game (receiving, pass block, run block)

-Reggie Nelson's grade was by far his worst so far this season (previous low: -0.2)

-Terence Newman graded +4.5 in pass coverage over the first four games of the season, and is -3.0 since (though his run defense is +2.1 during the same period)

-Eager to see PFF's ReFocused game write-up in hopes that it will explain Vontaze Burfict's low grade...