Denver's offensive line vaults to No. 1 after a Week 4 performance that yielded six pressures and zero sacks on 45 pass plays, driving a 93.3 PFF pass-blocking efficiency that sits among the league’s elite. Bolles leads the unit with an 88.1 overall grade, while Powers and Meinerz anchor the interior with exceptional pass-game consistency. Week 5 projections reinforce the starting five of Bolles, Powers, Wattenberg, Meinerz, and McGlinchey as a unit that fantasy managers should watch closely.

Buffalo rises with strong run protection and a revamped forward wall. Van Demark’s 82.0 run-blocking grade tops the Bills, complemented by Edwards’ 75.3 overall grade and Dawkins’ 77.8, both ranking highly among guards and tackles. The shift comes as Cincinnati’s defense faced a tougher challenge and Philly’s line wobbled, underscoring how weekly OL play shapes fantasy output for both quarterbacks and backs in a league where clean pockets remain king.