"I told the trainer to re-do it [Tuesday], but they decided to put me on the 7-day DL," Corporan said. "If I get hit again, that'll be a severe consequence on my head.
"I thought I was fine after the game last night. I didn't feel that bad, but today I kind of feel it. I'm glad they made that decision."
Corporan said it was the first time he had sustained a concussion. The Astros selected catcher Max Stassi from Double-A Corpus Christi to serve as Jason Castro's backup.
"It's unfortunate for Corporan," Astros manager Bo Porter said. "We're very concerned about his well-being, as well. Whenever you start to talk concussions and slow to respond, it's something that we all take serious. That's why we were quick to react and go ahead and put him on the concussion DL and get Stassi here."
Corporan said he watched the replay of the hit and noticed his head cocked back on the play, causing the concussion. He said he was hit by a foul ball on Sunday and felt fine, but Corporan will look for additional protection whenever he returns behind the plate.
"It's scary, because you don't feel anything," Corporan said. "All the symptoms start coming together at the same time, so it's kinda scary. I feel funky, dizzy and nauseous. It's not fun at all."
Master Tesfatsion is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.