Keibert Ruiz is currently on the concussion IL. His last game was July 5th and he still hasn't begun a rehab assignment. Just over a week ago, Mark Zuckerman of MASNsports.com provided an update on Ruiz. He had begun doing some first base drills, not for a positional switch, but just to get him on the field and tracking baseballs without putting him at any real risk of exacerbating his situation.