49ers' Brock Purdy is doing something only one NFL QB has done before

The San Francisco 49ers are looking like themselves again, and that means they're winning. Quarterback Brock Purdy is a large part of this team's 3-0 start to the season because the offense is always headed up by its signal-caller.

So, the 49ers are undefeated going into their Week 4 matchup against the Denver Broncos, who are 2-1. Ahead of that game, Purdy is getting some special recognition for his power on the field.

In a feature for CBS Sports, Garrett Podell ranks all of the NFL quarterbacks going into Week 4. There's a new No. 1, and you may have heard of him.

Brock Purdy is the NFL's No. 1 quarterback, CBS Sports says

Yes, Purdy is ranked No. 1 on this tally. He went up a whopping seven spots in one week to claim this title. Purdy has also made history in his start.

"There have only been two quarterbacks in NFL history with 10-plus total touchdowns and no sacks taken through the first three weeks of a season: Hall of Famer Dan Marino in his 1984 NFL MVP season and 2026 Brock Purdy," Podell notes. "Purdy leads the NFL in passer rating (133.1), passing success rate (63.9%) and expected points added (EPA) per dropback (0.62) while co-leading the league in passing touchdowns (9)."

Podell also points out that even with having injured guys on the offense, Purdy has been able to pull off wins, which takes someone special.

"He's also been accurate, ranking third in the NFL in completion percentage" at 72.3%, he notes. "That's despite seemingly losing key members of his 49ers supporting cast because of injury week after week. Purdy earned the top spot entering Week 4."

Now, Purdy will try to make the tally 4-0 against a Denver team that's hungry to go 3-1 and avoid a second loss.