The 49ers’ joint practice with the Chargers in El Segundo ended up saying plenty about both teams, but the loudest message was how badly San Francisco’s defense got exposed. Justin Herbert, Trey Lance and DJ Uiagalelei spent the day carving up the 49ers with long touchdown throws, and the unit never found an answer.
Deommodore Lenoir, Upton Stout, Ji’Ayir Brown, Marques Sigle and Ephesians Prysock all took their share of damage, which made the whole showing even more troubling given that the Chargers’ offense wasn’t exactly overwhelming. San Francisco couldn’t stop the run, couldn’t generate pressure and couldn’t cover cleanly.
Fred Warner was part of the problem too, knocking out starting cornerback Renardo Green when he accidentally ran into him on a slant route. Green was the only defensive back who didn’t get picked apart before leaving practice.
That hit added to an already rough camp for the 49ers’ defense. Warner had also injured running back Jordan James earlier in camp, and James still has not practiced since Warner broke his rib.
With Nick Bosa possibly missing time, the pass rush looks especially thin, and the absence of Robert Saleh is impossible to ignore. The source material made the comparison bluntly: he’s so much better than Raheem Morris.
On the other side, the 49ers did get a few encouraging individual showings, even if the offense as a whole struggled. Corey Kiner returned after missing the past two weeks with an adductor injury and immediately looked like the team’s best healthy running back, both running and catching the ball.
The piece was clear about the stakes there: if he stays healthy, he could have a huge impact, and without him the 49ers won’t have a running game. The same report even called him potentially the most important rookie on the roster.
At receiver, Jauan Jennings was one of the few who actually made plays. He hauled in a 30-yard catch over the middle from Mac Jones while most of the receiving group had trouble holding onto anything. Jennings is described as a quality backup and someone who has had a phenomenal camp, making a strong case to stick on the roster over Jacob Cowing and Christian Kirk.
Demarcus Robinson also drew notice after returning to practice following a missed session on Sunday. He should have come down with a deep ball over the middle, but Brock Purdy overthrew him.
Still, Robinson and Jennings were singled out as the 49ers’ two most consistent wideouts in camp. The write-up added a pointed caveat about Robinson’s standing behind Deebo Samuel, saying Samuel is great friends with head coach Kyle Shanahan and Robinson is not.
Purdy’s day was mixed, and not for lack of trying. He was under pressure almost every time he dropped back, and against a strong Chargers defense he was intercepted for only the third time in camp.
The article framed that performance as a more realistic test than what he’s faced against San Francisco’s own defense, noting that even Trey Lance was able to pick apart the 49ers’ secondary. Purdy is good, the piece said, but Thursday made it obvious how much harder the job gets when the opponent can actually rush and cover.
There was also a rough day for Mac Jones, who threw an interception as well. With a shaky offensive line, no running game and a rotating cast of backup receivers, the article said he’s not playing with confidence this offseason.
The comparison was to his earlier stops in New England and Jacksonville, where he looked the same way. Even with a few bright spots, the 49ers’ offense left El Segundo looking short on answers.
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