Giants catcher Hector Sanchez may be shut down for the season after suffering a second concussion during a minor-league rehab assignment for a July 25 concussion.
Sanchez’s rehab assignment was previously put on hold when he took a foul ball off the mask two weeks ago and that same thing happened Saturday at Triple-A.
Foul tips have been a frequent cause of catcher concussions during the past few seasons and, in one prominent example, led to the Twins shifting former MVP and six-time All-Star catcher Joe Mauer to first base this season.
Sanchez has spent the past three seasons as Buster Posey’s backup and the 24-year-old is unlikely to hit enough to be an asset at another position, so the brain injuries could threaten his career as a big leaguer.
