Fantasy football quarterback and running back upgrades/downgrades for Week 7

Don't get in Derrick Henry's way, especially not when he has a blocking advantage. Andy Lyons/Getty Images

Offensive linemen might not run the rock themselves, but they can still influence fantasy football.

Each week in this spot we break down matchups in the trenches, and how that information affects your lineup decisions. The basis of the discussion are our win rates -- run block win rate and run stop win rate, as well as pass block win rate and pass rush win rate -- which quantify line performance based on player tracking data using NFL Next Gen Stats.

To start the year, we leaned on projected versions of our win rates based on the players expected to play along the line of scrimmage for every offense and defense. Once games began, those preseason projections become our priors -- which we then updated with actual win rate data for every team. Now, with a decent sample of games played, we're going to simply use each team's actual 2021 win rates to determine mismatches.

Below we break down the Week 7 games, identifying the most advantageous and least advantageous matchups based on the projected difference in the offense's win rate and the defense's win rate, for both run and pass. Because of that, this is as much about quantifying each team's blocking ability as it is about the defense they're up against this week.

Let's dive in!