© 2012 MLB Advanced Media, L.P. All rights reserved.

08/11/12 7:47 PM ET

Corporan may not stay in bigs despite better at-bats

HOUSTON -- Catcher Carlos Corporan credits a new focus for his better numbers at the plate in 2012 after batting .188 in 154 at-bats in 2011.

"Instead of going out there to get a base hit, I'm trying to get a good at-bat," Corporan said. "Last year, I was probably trying to do too much and didn't have good success."

Entering Saturday's game, Corporan was batting .298 with a .511 slugging percentage. He had a solo homer and an RBI single in Friday's walk-off victory. He's been with the Astros since July 15 when catcher Jason Castro hit the disabled list with right knee effusion.

Manager Brad Mills said Corporan's performance in 2011 wasn't necessarily indicative of his ability because the Astros asked him to play behind the plate four or five times a week while regular catchers J.R. Towles and Humberto Quintero were injured.

"It just really wore down on him," Mills said. "I think he's able to stay a little fresher right now which enables us to maybe get a little more out of him."

Corporan's better performance, albeit in a 47 at-bat sample, doesn't mean his spot in the Majors is safe.

Castro is set to return to the Astros on Monday before their series in Chicago, if he completes his second nine-inning game with Triple-A Oklahoma City on Saturday without any setbacks.

Veteran catcher Chris Snyder, who's batting .170 in 171 at-bats, has been with the Astros all season. Teams rarely carry three catchers, so Corporan understands that he could be dealing with a change soon.

"I'll do everything they ask me for," Corporan said. "Every time they put me in the lineup, I will give my 100 percent."

He certainly gave it his all on his solo home run on Friday. Believing the ball was going to fall for a double, Corporan sprinted around the bases. He didn't slow down even after discovering the ball left the park.

"I was running hard so I just kept running hard. Just get it over with," Corporan said. "Whether you run fast or you run slow, a home run is a home run."

Moore: Bunt just taking advantage of defense

HOUSTON -- Considering the Astros were trailing by just two runs and it was only the fifth inning, the fact Astros infielder Scott Moore dropped down a bunt for the first hit of the game against Brewers starter Mark Rogers on Friday didn't violate any baseball sportsmanship rules.

Rogers, who was denied his first career win when the Astros rallied for two in the ninth inning, admitted he was surprised Moore -- the No. 5 hitter in the lineup -- bunted.

"I wasn't really thinking about [a no-hitter] that early, but I was a little bit surprised he bunted, to be honest with you," Rogers said. "I didn't expect Scott to bunt, and I've known him for a while."

Moore, who used to have the same agent as Rogers, said he bunted because Brewers third baseman Aramis Ramirez was playing deep. Moore said he believes it was his first bunt hit, and he wound up scoring the Astros' first run.

"In Milwaukee [last month], I noticed that Ramirez was playing back and I tried to bunt there as well," he said. "It wasn't a pitch for me to bunt and I pulled it back. My first at-bat [Friday] he was playing me back again, so my second at-bat I took a peek and he was still back. It's a 2-0 game and we're trying to get base runners and it worked."

Rogers didn't think it was a broach of etiquette.

"It was a close game and they're trying to get baserunners, so I should have done a better job of getting off the mound and making a play on it," he said.

Astros look to throwback jerseys for repeat win

HOUSTON -- On Friday, when the Astros wore the blue and gold star jerseys that the club sported from 1994-99 as part of a Flashback Friday promotion, the team pulled off its first walk-off win of the season.

Since the jerseys worked so well the first time, they figured they should wear them again.

Moments after Friday's on-field celebration, a couple of the players asked manager Brad Mills if they could wear the throwback uniforms on Saturday. Mills liked the idea and pushed it through the proper channels, which included the league office. After getting the OK from the Brewers, the Astros made the decision -- they'd wear the throwbacks again.

"I think the guys like them," Mills said. "I thought they looked good."

Some of the players in the clubhouse on Saturday weren't aware that they'd be wearing the jerseys again. First baseman Scott Moore said the jerseys were definitely well liked, however.

"Even before the game, before the walk-off win, guys were saying, 'I wish we could wear these all year,'" Moore said.

So if the Astros start a winning streak on Saturday, will they wear them until a loss?

"Let's go today and we'll see what happens," Mills said, smiling.

Brian McTaggart is a reporter for MLB.com and writes an MLBlog, Tag's Lines. Follow @brianmctaggart on Twitter. Clark Goble is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.