What happened: Brock Purdy has recorded an 89.6 Total QBR through his first four games, the highest mark across the league since Aaron Rodgers posted a 90.6 rating in 2020. He has also thrown 10 touchdown passes without taking a single sack over that stretch.

Why it matters: The efficiency places him alongside Dan Marino as the only quarterbacks to pair double-digit passing scores with a clean sack sheet through the opening month. The historic stretch builds on a near-flawless Week 2 outing, keeping the offense operating at an elite level.

What to watch: He will look to maintain his sack-free streak as the schedule advances into Week 5.