49ers training camp turns to damage control as De’Zhaun Stribling sits and Deebo Samuel looks sharp

San Francisco’s first full week of August practice brought the kind of mixed indicates that define the NFL calendar. According to a daily roundup from Yahoo Sports on Sunday, the 49ers practiced without rookie wide receiver De’Zhaun Stribling, who was dealing with “hamstring tightness,” while the veteran presence of Deebo Samuel drew positive attention after what the report described as a strong opening showing.

The key clarification from the team spokesman, as reported, was that Stribling’s situation was not being treated as a hamstring strain that would change the immediate picture for his availability. That distinction matters because “tightness” often reflects workload management, while “strain” can move a minor issue toward a more restrictive recovery timeline. Still, even when the severity is downplayed, the fact that a top pick is held out of a practice day is a reminder that camp reps are earned, not guaranteed.

For Samuel, the report framed his return to the field as a momentum builder. The daily item said Samuel arrived in “really good shape” and made “waves” during the first practice, also noting that he was coming off two impressive practices. In practice-season terms, that is more than scoreboard-style production. It suggests the offense is getting its core playmaking elements back on schedule, and it offers coaches a cleaner picture of how their receivers move together in the timing-heavy early stages of camp.

At the same time, August practice absences can cascade. Even if Stribling’s issue is not a true strain, losing any receiver during a session forces the depth chart to shuffle, which can affect how the coaching staff evaluates route combinations, third-down packages, and situational chemistry. With limited live-contact reps available in camp, teams tend to treat each missed practice as an opportunity cost, especially for players still learning the speed and cadence of the playbook.

Taken together, the day’s developments reflect a familiar 49ers camp theme: ramp the workload aggressively, then adjust quickly when bodies ask for it. The report indicates the adjustment was made early enough to keep the situation from escalating, at least in the way it was being categorized publicly. That approach is consistent with how teams try to protect draft-class development while still pushing conditioning in the heat.

The rest of the camp story will likely hinge on two questions. First, whether Stribling returns soon and whether the “tightness” label holds or develops into a more restrictive designation. Second, how consistently Samuel can carry the same intensity across multiple sessions, especially as the team layers in more complex defensive looks and sharper condensed-game concepts.

As practices continue, fans should watch for changes in who participates fully versus who is limited, because that pattern tends to reveal whether a minor issue is being actively managed or if it is already shaping the next few days. Until there is a more formal update, the most responsible takeaway from Sunday’s report is straightforward: August is producing the first round of maintenance decisions, but San Francisco is also getting encouraging early indicates from its veteran offensive core.