With injuries mounting and multiple wide receivers sidelined to start 2025 training camp, the 49ers' focus shifts to a defense where a youth movement and intense position battles shape the starting lineup.


The San Francisco 49ers' 2025 training camp is barely underway, but the drama is already mounting: the team's "youth movement," contract demands and potential hold-ins, "open competitions" for starting jobs, never-ending hamstring injuries, and even quarterback Brock Purdy missing practice.

The good news is everything should be smooth sailing once full padded practices begin. But until then, here's the 49ers news the Faithful need to know from the opening week of training camp.


49ers starting QB Brock Purdy missed Friday's practice for a personal matter, but, as the team relayed, his absence was nothing to be alarmed about. Whether he was launching a new khakis line at Kohl's or perhaps celebrating a positive personal milestone, he is expected back at practice on Sunday with details likely forthcoming.

49ers Defensive Youth Movement


The 49ers' proposed "youth movement" could field 4-5 rookie starters on the defensive side of the ball, with the team's defensive line transformation providing the foundation. First-round pick Mykel Williams joins second-round defensive tackle Alfred Collins—who crossed the virtual picket line as the first of 30 second-rounders to sign his rookie deal—and fourth-round DT C.J. West, in earning first-team reps. The Niners traded for Eagles defensive end Bryce Huff, who will likely rush outside on passing downs, with Williams moving inside after playing 4-tech extensively in college.

Behind the rookies, the 49ers show promise, including rotational players like Kevin Givens, Jordan Elliott and Evan Anderson on the interior. At defensive end, they retain Yetur Gross-Matos, who was a surprising holdover from 2024 given the financial specifics of his contract, while Sam Okuayinonu returns as well.

Defensive end Mykel Williams already received the approval of starting left tackle Trent Williams. "You usually don't see guys that size on the edge. It sucks having to base block guys with arms as long as your legs," Williams said, comparing the 21-year-old to "a young DeForrest Buckner" and adding he has "all the tools to be an All-Pro." When asked about their relationship, Williams explained, "Mykel told me he was going to Cabo because he had asked to use my plane... and I was like, you know, I'ma actually be out there at the same time. So he came over to the house. We kicked it a few times."

News of the rookie's request does raise questions surrounding proper plane-borrowing etiquette. Such a request certainly dwarfs the more traditional "Can you pick me up at the airport?" or the dreaded, "Are you free to help me move?" Clearly a next-level first-world issue that warrants further discussion.


Wide Receiver Crisis


Jauan Jennings' presence at training camp brings some much-needed relief to the Niners' The relief of having Jennings on the field is magnified by the receiver room's limitations. The veteran receiver was among several players reportedly considering hold-ins over contract disputes, but the latest NFLPA scandal and JC Tretter's last-minute resignation appeared to be well-timed, presumably resulting in a change in negotiation tactics across the league. Jennings' decision to report was the correct one, putting him in a better position to discuss his long-term future with the team while avoiding potential disaster.

The 49ers claim to have adopted a new hardline stance after ownership was reportedly frustrated by caving to last-minute contract demands from All-Pros like Deebo Samuel, Brandon Aiyuk, and others. Jennings is just one year into his contract extension and coming off a 975-yard season, doubling his previous career totals. For Jennings, attempting to utilize his leverage could have likely backfired spectacularly.

Ricky Pearsall, who is expected to carve out a major role after a partially lost rookie season—spending the first part recovering from a gunshot wound and the latter part trying to line up correctly and remember plays—is dealing with a hamstring injury but is expected to be ready for action on Sunday. Jacob Cowing, who entered camp with just four career catches but appeared to have the upper hand on a starting role, pulled his hamstring earlier in the week, and his timeline for returning is unknown.

In response to mounting injuries, the 49ers have signed camp bodies like Equanimeous St. Brown and Quintez Cephus rather than pursue legitimate long-term options. The team appears to have accepted a minimal level of talent in their wide receiver room and seems comfortable sticking with that approach for the foreseeable future.

Wide receiver depth was already a problem before camp began. Hopefully, existing injuries prove minor, but a significant escalation could create a crisis. The 49ers are playing with fire by not replacing talent lost during the offseason, particularly with Aiyuk's recovery timeline uncertain. The team is banking on health at a position that already lacks depth—a risky strategy for an organization that just invested heavily in its new franchise quarterback.


49ers Secondary Open Competition


The 49ers' secondary features competitions across multiple positions due to a concerning lack of established depth. Deommodore Lenoir is locked in as one starting cornerback, but questions surround his role in subpackages and whether he'll be forced to stay outside. The 49ers' second starting corner spot belongs to Renardo Green, though he suffered a hamstring injury on Friday which complicates the team's evaluation process. An important question is whether DeMo moves to the slot in subpackages. Third-round defensive back Upton Stout, undersized at just 5'8" and 180 pounds, isn't expected to line up outside, so if he holds on to the starting nickel job, Lenior may be forced to abandon a position where he flourished over recent seasons.

At safety, the 49ers have a troubling lack of proven options. Malik Mustapha continues to recover from injury and hopes for an early return to action, while Ji'Ayir Brown likely begins the season in a starting role largely by default. He has starting experience in San Francisco's secondary, and he can play both safety positions, though neither particularly well. The 49ers' safety alignment depends on other personnel decisions: Brown will spend much of his time in the box if Jason Pinnock wins the free safety job, with deeper coverage responsibilities if Richie Grant claims the strong safety role.

The competition may be open, but it will also be somewhat limited, primarily due to a lack of viable options. Fifth-round pick Marquise Sigle projects as the fourth safety and likely makes the team based on draft status and special teams value. Veterans like Tre Brown provide outside cornerback depth, while Siran Neal offers versatility as a nickel back who played corner, safety, and linebacker in college.

Linebacker Questions and Robert Saleh's Impact


San Francisco's linebacker corps presents its own set of questions, particularly at the WILL position where Dee Winters appears to be the guy to beat, though third-round pick Nick Martin presents a compelling challenge. Both players have similar undersized athletic profiles of former safeties. However, the 49ers didn't draft Martin in the third round to sit on the bench, which only makes the team's plans further unclear.

The challenge for both players is versatility. It would be a challenge for either player to transition to SAM linebacker, even though the position isn't utilized extensively within the defense. These are focus areas of importance as camp progresses, with answers likely coming in the weeks ahead as the coaching staff determines how to maximize both players' skills.


Robert Saleh's return as defensive coordinator adds intrigue to the team's position battles. His familiarity with the organization and his previous success developing young players could accelerate the integration of rookies like Martin while maximizing the potential of returning players who struggled under previous coordinators.

Offensive Line and Looking Ahead


The San Francisco 49ers' offensive line always faces challenges, but this season, particularly at left guard, as Ben Bartch's injury opened a door for Nick Zakelj to prove his worth. Similar to other position groups, the team's overall depth situation due to the offseason exodus has limited the number of players involved in the competition, simply because there are few viable options.

The coaching staff is now experiencing the full reality of the franchise's offseason personnel decisions, as the team's lack of depth is apparent across multiple key position groups. While this potentially creates opportunities for younger players to earn important roles, it also leaves little margin for error if injuries mount or players fail to develop as quickly as desired.

The combination of the 49ers' "youth movement," injury concerns, and a lack of veteran depth creates a fascinating dynamic as the 49ers attempt to maintain championship aspirations while simultaneously navigating significant roster turnover. The success of young players like Mykel Williams and the recovery timelines of injured veterans will largely determine whether this transition year becomes a stepping stone or a setback for the franchise.

Written By:

Chris Wilson


You may have seen Chris Wilson's work on NFL game theory, statistical analysis, and film breakdowns at FanSided, Niner Noise, Locked on Sports, Insidethe49, ClutchPoints, and others. Follow Chris on Twitter @cgawilson.
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