Burrow had a broken hand and a separated shoulder. Wouldn't that be just as alarming for someone who throws a ball for a living? Some guys like Rosen had concussion injuries in college. To me that's way more concerning knowing the history of people who get concussions are more susceptible to more of them. Concussions can definitely be career enders. There really isn't any perfect prospects. Every one of them have something that you can nitpick about them. There have been loads of players who have injuries in college that went on to have long healthy careers just like there have been loads of prospects that were totally healthy in college and got hurt in the pros and had extremely short careers. I love the analogy TedSlimm used in another post. He said injuries are like lightning strikes. You just don't know when and where they are going to happen.