Here's a look at the analytical PFF ranking shown during "Sunday Night Football" games and what it actually means. A player's PFF ranking is their Pro Football Focus ranking at their position.

PFF grades are useful as descriptive measures ... of the play was minor despite it being a 70-yard TD pass on the stat sheet- and which is a big boost to a QB’s stats in other metrics.

Below average PFF grade: 81.1 Lewis didn't fill the stat sheet with one pressure and two tackles, but the Colts run defense did hold up well in this game, and oftentimes a key contributor to that ...