Inside: Kyle Shanahan was in a serious car accident a couple weeks ago. Plus: where star free-agent receivers should land, along with early camp takeaways, including Aaron Donald’s status. Let’s start in San Francisco.This article is from The Athletic’s NFL newsletter. Sign up here to receive it directly in your inbox. It’s free to subscribe. Shanahan recovering from accidentOn July 14, not far from his home in Northern California, Kyle Shanahan’s vehicle collided with an SUV. No one has been cited, and drugs and alcohol are not believed to be involved, according to the police report.Shanahan broke his hand, nose and three ribs, and his face needed over 40 stitches. He’s also still showing concussion symptoms, and was limited when the 49ers’ training camp opened.“Kyle basically is going to be in the (concussion) protocol,” said general manager John Lynch. “We’re going to let the condition, the doctors, dictate how he comes back, when he comes back.”We’re glad it sounds like Shanahan will be OK. Still, it’s bizarre that this happened to the coach of the 49ers, given his team’s ever-present injury woes.Meanwhile, the opening of training camp means it’s time to check in on other injured 49ers:In yesterday’s first practice, receiver Christian Kirk exited with an undisclosed injury. But otherwise, many key 49ers have returned to the practice field.Nick Bosa “looks better than he did last year,” according to the newly 38-year-old Trent Williams, with the edge rusher practicing for the first time since an ACL tear last September. Linebacker Fred Warner is also back from a brutal ankle injury, armed with newfound purpose.