How PFF graded Purdy, 49ers in sloppy Week 7 loss to Chiefs

The 49ers put together an inconsistent game in their 28-18 loss to the Kansas City Chiefs on Sunday at Levi's Stadium, and their Pro Football Focus grades provide some insight into where things went wrong. San Francisco quarterback Brock Purdy had one of the worst games of his young NFL career, and not much went right for an offense that produced just 15 first downs on its own and four from penalties. The 49ers' signal-caller, without three of his top targets for most of the game, completed only 17 of his 31 pass attempts for 212 yards and three interceptions with a 36.7 passer rating. San Francisco knew it would be without Jauan Jennings due to a hip injury, but Deebo Samuel, who was dealing with an illness only was on the field for four snaps before sitting out the remainder of the game. Then, the team lost Brandon Aiyuk to a season-ending knee injury before halftime. Rookies Ricky Pearsall, who was making his NFL debut, and Jacob Cowing stepped in to help as much as they could, but the challenge of the Chiefs' defense proved too much for the offense to overcome. Here are the 49ers' Week 7 PFF grades: Offense QB Brock Purdy - 54.6 Purdy received a passing grade of 48.0 and a...