Beyond Purdy and McCaffrey, unexpected tight ends and interior linemen shone. Discover who powered the 49ers' offensive success.

Here are the 10 highest-graded Steelers on defense from Pittsburgh’s Week 17 matchup against the Cleveland Browns.

LSU QB Michael Van Buren delivered the best performance of his young career Saturday night against Houston. See how PFF graded his stellar outing:

Once again, the first-place Seattle Seahawks came up with a solid road win. A starting safety and a busy backup running back stood out for the team at Carolina.

PFF's five-worst grades for players on the Jets (3-12) offense against the Saints (5-10) can be found below (minimum 8 snaps played): PFF grade: 53.7. PFF grade: 52.5. PFF grade: 51.3. PFF grade: 51.2. PFF grade: 28.5.

Here are the 10 highest-graded Steelers on offense from Pittsburgh’s Week 17 matchup against the Cleveland Browns.

Entering a key Week 18 game and the playoffs, the Seattle Seahawks have 2 of the NFL's 5 highest-ranked RBs according to Pro Football Focus.

PFF's five-highest grades for players on the Jets (3-12) offense against the Saints (5-10) can be found below (minimum 8 snaps played): PFF grade: 66.4. PFF grade: 66.8. PFF grade: 66.8. PFF grade: 71.7. PFF grade: 84.2.

That's where a given player is slotted at his position by the Pro Football Focus rating system. Sometimes, the rank is very odd. Like in Week 17, when San Francisco 49ers running back Christian McCaffrey showed as No. 18 out of 60 ranked running backs.

Quarterback Jared Goff turned in his worst performance of the season, and was among the lowest graded players in Thursday's game via Pro Football Focus. With three fumbles lost and two interceptions, Goff earned an overall offensive grade of 46.6, which ranked above only tight ends Giovanni Ricci and Shane Zylstra and center Kingsley Eguakun.