Kelly quickly retreated to the clubhouse for treatment, accompanied by members of the Giants' athletic training staff. Kelly's medical history, which included a concussion he sustained that forced him to miss part of the 2012 National League Championship Series when he was San Francisco's first-base coach, accented the Giants' sense of urgency to monitor his condition.
Chris Haft is a reporter for MLB.com. Read his blog, Haft-Baked Ideas, follow him on Twitter at @sfgiantsbeat and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.