Carlos Corporan placed on DL

ARLINGTON, Texas -- Astros catcher Carlos Corporan was placed on the seven-day concussion disabled list Tuesday, a day after being struck in the head by a foul tip.

Corporan was headed back to Houston, where he was slated to see a specialist Wednesday.

"It's unfortunate for Corporan, and we're very concerned about his well-being," manager Bo Porter said before Tuesday night's game against Texas. "Whenever you start to talk concussion and slow to respond, it's something that we all take serious."

A foul tip struck Corporan's mask near the end of the third inning of a 16-5 loss Monday night, when the Rangers' 11 runs accounted for the highest-scoring inning in the majors this season. He was replaced behind the plate to start the fourth.

"A little bit dizzy and lightheaded just like I got hit in the head," Corporan said Tuesday, describing how he felt. "I thought I was fine after the game (Monday) night. I didn't feel that bad, but today I kind of feel it. I'm glad they made that decision."

Porter said trainer Nate Lucero was adamant between innings after talking to Corporan that there was a problem. Corporan said he "didn't pass the tests" after coming off the field.

"That's why we got him out of the game so quickly, there wasn't even a second thought," Porter said.

Corporan said he knows he couldn't handle another shot in the head right now, and that one might have a severe consequence.

"It's the first time. I've been hit many, many times. I think (Monday) night it got me in the right spot," he said. "It's scary because you don't feel anything. 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."

Also Tuesday, the Astros designated left-hander Wade LeBlanc for assignment. They promoted right-hander David Martinez from Triple-A Oklahoma City and catcher Max Stassi from Double-A Corpus Christi. Stassi was in the lineup Tuesday night as the designated hitter.

Corporan was hitting .245 with seven home runs and 17 RBIs in 50 games this season. One of the switch hitter's homers came Aug. 12 against Yu Darvish, a solo shot with one out in the eighth inning that ended a no-hit bid by the Rangers ace.

Since Jason Castro was already in Monday night's game as the designated hitter, the Astros replaced Corporan with Jake Elmore, a utility player who had never caught in the majors. Elmore caught four innings before pitching a 1-2-3 eighth, the only one of four Houston pitchers not to allow a run.