Pro Football Focus grades each individual player's performance and assigns them a grade. All 32 teams use Pro Football Focus. 

Each week we will take a look at some of the key grades as well as some from the Texans upcoming opponent. They also do great fantasy analysis and draft coverage as well. Stats are for the previous game unless otherwise noted. You can join Pro Football Focus here. 

Brennan Scarlett - 94.4 Defensive Grade

Hello, secret weapon. Who knew he could play inside linebacker so well? The Texans it seems. And now, Washington. He only produced a handful of tackles but came up with an interception and did one heck of a job in coverage for the Texans. Scarlett has been a special teams weapon for almost the entire season and now in a pinch, the Texans found a good defensive use for him outside of his normal position. This is a testament to Scarlett and the coaching which helped get him ready. 

Greg Mancz - 29.5 Pass Blocking Grade

Mancz came in for an injured Zach Fulton and had a surprisingly low grade. Mancz had done well filling in for Fulton earlier in the season when he was injured. He allowed the most pressures on the team in this game with four. It may have been a bad matchup for him, much like the Giants were earlier in the season when he filled in at left guard. A rare bad game for Mancz in this spot as he had been solid. 

Deshaun Watson - 14.9 Yards Per Attempt on Blitzed Plays

Watson saw a blitz on 10 dropbacks and was sacked twice. On the other eight plays, he tried to make a big play. It was the only situation in which he had a double-digit YPA. Watson's YPA was short, the Texans had a lot of yards after the catch. This is something Watson is very capable of doing because the offensive line has been good recently and his feet let him extend the plays. With play-calling being fairly conservative, Watson taking advantage of the defense risking blitz is good to see. 

Marcus Mariota - 34.8 Offensive Grade

The Titans quarterback is hurt and coming off a horrible performance in Indianapolis. His worst of the season in fact. He passed for just 85 yards and was injured and replaced by Blaine Gabbert. The week before though he posted his highest grade of the season against New England. He's about average for the season and that's what the Texans just faced in Alex Smith. He didn't play against the Texans earlier in the year, but ahead of Monday, he has a chance to finally impress against the Texans. He's thrown just one touchdown pass in three games against Houston. 

As always, you can join Pro Football Focus here.