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03/16/12 9:48 PM ET

Giants send prospect Brown to Minors camp

SCOTTSDALE, Ariz. -- The Giants reassigned center fielder Gary Brown to Minor League camp, intent on getting more activity for one of their top prospects.

Brown, San Francisco's No. 1 selection in the 2010 First-Year Player Draft, had played 28 innings in center this spring, behind projected Opening Day starter Angel Pagan (41) and non-roster sensation Gregor Blanco (38). Brown hit .182 (2-for-11) in seven Cactus League games.

Brown, 23, likely will begin the season at Double-A Richmond after hitting .336 last year at high-Class A San Jose.

Posey slated for defensive respite

MESA, Ariz. -- Buster Posey caught five innings in the Giants' 3-2 exhibition victory Friday over the Chicago Cubs. Next up: a three-day break from catching.

Posey will accumulate at-bats Saturday by serving as a designated hitter in a Minor League exhibition game. Manager Bruce Bochy said that Posey won't play in Sunday's exhibition against San Diego, which is followed by a team-wide scheduled off-day Monday.

Posey said that he might catch six innings, which would be a personal high for this Cactus League season, in Tuesday's game against Arizona.

Against the Cubs, Posey went 1-for-2 with a walk. His second-inning single off Matt Garza, like the home run he struck Wednesday for his first Cactus League hit this year, was stroked to the right side. It was a low line drive that second baseman Adrian Cardenas couldn't handle.

Asked about the hit, Posey said, "Any time you can get deep in the count and get the barrel on a tough pitch, you're happy with that at-bat."

Worth noting

• Freddy Sanchez's Cactus League debut at second base will wait until next week, at the earliest. On Friday, manager Bruce Bochy posted the lineups for Saturday's split-squad games, which had Sanchez playing against Oakland and making his fifth spring appearance as a designated hitter. Before playing Sanchez on defense, Bochy wants to watch him take infield practice at least one more time and test his injured right shoulder by throwing without hesitation.

• Right-hander Sergio Romo is temporarily unavailable to pitch due to discomfort in his elbow, the San Francisco Chronicle reported. Romo has experienced occasional elbow problems in recent springs.

• Left-hander Eric Surkamp recorded his best outing of the spring, allowing one run and four hits in four innings during Friday's 3-2 victory over the Chicago Cubs at Mesa, Ariz.

"I was just trying to stay fluid and keep my arm moving with the lower body," said Surkamp, who has a chance to make the season-opening rotation as the No. 5 starter if Ryan Vogelsong begins the season on the disabled list. "No matter where I end up, I just want to get my starts in every fifth day, whether it's in [Triple-A] Fresno or San Francisco," Surkamp said.

• Emmanuel Burriss has made seven appearances at second base, three each at shortstop and third base and two in left field.

• Though first-base prospect Angel Villalona is still wrestling with visa problems, the Giants optioned him to their high Class A San Jose roster.

This was to be Villalona's first Major League Spring Training, but he was never able to leave his native Dominican Republic because of visa complications.

Chris Haft is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.