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5/12/2013 8:20 P.M. ET

Braves don pink in honor of mothers

SAN FRANCISCO -- B.J. Upton did not remember having much success while utilizing a pink bat during each of the previous games he had played on Mother's Day. But that did not stop the Braves center fielder from joining the many Major Leaguers who used pink bats to promote the battle against breast cancer during Sunday's games.

"Everybody has moms and there are not many families who have not experienced cancer in some way," Braves manager Fredi Gonzalez said. "It's good that everybody is on board with that. It's pretty special."

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Gonzalez's mother-in-law has battled breast cancer and Freddie Freeman's mother lost her battle against melanoma when he was just 10 years old. But they were far from the only Braves who were wearing pink during Sunday afternoon's 5-1 loss to the Giants at AT&T Park.

"I think it's a cool thing," said Dan Uggla, who wore pink compression sleeves on both arms. "We enjoy it. We like showing our support with things like this and we definitely love showing moms how much we love them. It's always cool."

The only Major Leaguers permitted to use pink bats were those that utilize bats made by Louisville Slugger. This excluded Freeman from that aspect of the initiative. But he showed his support while wearing a pink armband and bright pink shoes made by Under Armour.

"I would wear a whole pink uniform if I could," Freeman said. "I know [my mother] is up there watching and all of the other moms are up there watching us. We're out there to support all the moms."

The Upton brothers -- B.J. and Justin -- went hitless while serving as the only members of the Braves' starting lineup to utilize the pink bats.

Beachy excited to begin rehab assignment

SAN FRANCISCO -- Brandon Beachy has impressed the Braves with the discipline and dedication he has displayed while rehabbing from Tommy John elbow reconstruction surgery. His hard work has positioned him to rejoin Atlanta's starting rotation during the middle of June.

Beachy will begin his Minor League rehab assignment with a two-inning outing during an extended spring training game in Lake Buena Vista, Fla., on Tuesday. Barring any setbacks, the 26-year-old right-handed pitcher will likely make at least six starts before being activated from the disabled list.

"I've been looking forward to this for 11 months, the opportunity to face a batter in a game setting," Beachy said. "It will be a fun test."

Beachy was leading the Majors with a 2.00 ERA before he learned he needed to undergo surgery to repair a partial tear of the ulnar collateral ligament in his right elbow. His return could provide the Braves with a legitimate top-of-the-rotation starter for this season's final 3 1/2 months.

After making his initial rehab start in Florida, Beachy will return to Atlanta to make the remainder of his starts with Class A Rome, Double-A Mississippi and Triple-A Gwinnett. If he needs just six starts to complete his rehab assignment, he could return during the home series against the Giants, which is scheduled for June 14-16.

"It's still awhile yet in terms of days," Beachy said. "But it's going to go by a lot faster now that I'm in a routine. I'm getting to where I want to be."

Worth noting

• After missing Friday and Saturday's game while attending his daughter's graduation from Georgia Southern University, Gonzalez returned to San Francisco late Saturday night and was present for Sunday's series finale against the Giants.

• Because Brian McCann had some previous success against Tim Lincecum, Gonzalez opted to bat the veteran catcher third and move Justin Upton to the cleanup spot for Sunday's game. This alignment allowed him to put the right-handed Upton between two left-handed hitters -- McCann and Freeman.

• Ramiro Pena started at shortstop Sunday to give Andrelton Simmons a chance to rest. "[Simmons] plays so hard," Gonzalez said. "Sometimes, I just like to get him a breather."

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