In the world of the San Francisco 49ers, Friday practices are considered the lightest of the week, with one notable exception. On a day when most team drills are done at half speed, there's one red zone period of 7-on-7 in which everyone goes all in.

For 13 weeks, Niners quarterback Brock Purdy has led the scout team in those drills against the Niners' first-team defense. In each of those weeks, Purdy's taken pride in occasionally sneaking one past Niners linebacker Fred Warner and Co. for a touchdown. Two days before Sunday's 33-17 win against the Miami Dolphins, Purdy was at it again, firing twice in the direction of Warner and coming up empty both times.

Warner made sure Purdy heard all about it, yelling at the top of his lungs for Purdy to "know better" than to try throwing in Warner's direction.

"You can just tell by the way he walks, you know when somebody has just kind of got the 'It,' you can kind of see it, and I think he does," Warner said. "I know he can take that. That's how I know he's prepared, he's ready. He's played against the best defense in the league for the past 13 weeks. So, he's going to be just fine."

Warner's hope is one shared by the rest of the 49ers after starting quarterback Jimmy Garoppolo suffered a broken left foot early in Sunday's victory. Garoppolo's injury comes just 11 weeks after Trey Lance went down with a right fibula fracture. Suddenly, Purdy has gone from No. 3 on San Francisco's quarterback depth chart to No. 1.