Hector Sanchez concussed again

San Francisco Giants catcher Hector Sanchez might miss the remainder of the season after suffering a second concussion in a matter of weeks, and as general manager Brian Sabean told reporters, "he should be very concerned."

Sanchez suffered an initial concussion July 25, when he took a foul tip from Adrian Gonzalez off his mask in the third inning of an 8-1 loss to the Los Angeles Dodgers. The San Jose Mercury News reports that Sanchez was wearing a new mask when he took another foul tip off the mask during a rehab game for Triple-A Fresno on Saturday.

"There has to be (that concern) with this being his second one, but we'll know in the next few days after we see how he responds and the progress he makes," manager Bruce Bochy said, according to the Mercury News. "You have to think of the player's well-being and what's right. This is going to take some time with Hector."

He was hitting .196 with three home runs and 28 RBIs in 66 games this season.

"There's a real-life concern -- our concern, and he should be very concerned," Sabean told reporters. "We'll do what we did with (Brandon) Belt. We'll be methodical about further testing and continuing to evaluate him."

Sanchez had "at least one serious" concussion during his minor league career, the Mercury News reports.

"What you don't know, as we all learned in (Mike) Matheny's case, is how many times it happened in the minor leagues, or winter ball, or in a major league game, and the guy just wrote it and never said a word," Sabean said. "It was 'part of the job, part of the position.' Now there's more education and more people are in the know and understanding."

The Associated Press contributed to this report.