Vernon Davis and Eric Reid are active for today’s game against the Saints. This was just announced in the press box. Both suffered concussions last Sunday. Reid got knocked out, as in he lost consciousness. If Reid were a boxer in California, he would have to wait 90 days before he could fight again. I am not criticizing the 49ers’ doctors. They know their business. My experience covering boxing makes me worried, squeamish about letting concussed players play so soon. It’s rare when I can say boxing is more humane than another sport. In this case it’s more humane than football.