After getting drilled in the head with a 94-mph fastball on Monday, Buster Posey is hoping his stint on the disabled list — like everything with how the San Francisco Giants are approaching this injury — is just a precaution. Speaking to the media a day after Taijuan Walker's first inning pitch bounced of his helmet, Posey told San Francisco reporters that he "feels good overall," but has some lingering symptoms consistent with concussions.