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05/09/12 3:20 AM ET

Braden, Anderson progressing in rehab

OAKLAND -- Lefty Dallas Braden took a notable step in his rehab process Monday, and fellow southpaw Brett Anderson is set to do the same Wednesday.

Braden, who was shut down from throwing at the beginning of April after experiencing soreness in his surgically repaired left shoulder, played catch for the first time since then, throwing from a distance of 60 feet.

Anderson, meanwhile, is scheduled to throw his first one-inning outing in a simulated game in Arizona, utilizing all of his pitches. The lefty, rehabbing from Tommy John surgery, has thrown up to 40 pitches in bullpen sessions but is not expected to surpass the 25-pitch mark Wednesday.

Anderson's return timetable remains the same, as the A's hope to reel him back into the rotation soon after the All-Star break. Braden's return is unknown.

McCarthy pushed back with shoulder issue

OAKLAND -- Shoulder issues, which have plagued much of Brandon McCarthy's career, kept the right-hander from making his scheduled start Tuesday, as the A's pushed his turn back to Saturday.

But even that's not a guarantee. McCarthy will have to exit his bullpen session Thursday without "anything that gives me caution or pause," he said, in order to be cleared for the outing against Detroit. However, he already underwent an MRI that came back clean.

McCarthy insists the soreness in his right shoulder isn't serious, particularly compared to what he's experienced in the past and, most recently, last year, when he missed six weeks because of a stress reaction in his right scapula. The same injury has surfaced in four of his past five seasons, and McCarthy believes he's taking extra precautionary steps this time.

"I'm trying to find it earlier and earlier," he said. "The way some people can tell it's going to rain, I guess I could kind of see this coming, so I was trying to stay out in front of it. A few days off is probably the best way to go about it.

"This becomes unchartered territory, because I've never been this far in front of it. Usually I've kind of run up to the wall, and last year I shut it down earlier than I had in past years. This year, I'm trying to deal with it before it's even an issue. Finding the right way to get around it hasn't been figured out yet, but hopefully we're doing that."

The injury-prone McCarthy, who has endured six career disabled list stints, first noticed something was off the day after his 113-pitch outing in Boston, where he gave up just one run in 6 2/3 innings. Over his last three starts, he's 2-1 with a 2.18 ERA.

He came out of his Sunday bullpen session feeling fine and is scheduled to play catch on Wednesday, before throwing long toss and undergoing another bullpen Thursday. He admitted a DL stint would be likely if he's unable to go Saturday, particularly since the A's would need a spot starter and could backdate the transaction to May 2, but he didn't seem at all interested in deeming such a scenario probable.

"When I say it's not even on the same universe [as last year's injury], it really isn't," he said. "Last year it was mandatory. I could barely breathe without wincing. This is nothing. It's a step above a premonition that something doesn't feel quite right."

Jarrod Parker, initially scheduled to pitch Wednesday, started Tuesday's game against the Blue Jays, with Tyson Ross now set to go Wednesday and Bartolo Colon and Tommy Milone to follow.

Cespedes scratched with sore left hand

OAKLAND -- Yoenis Cespedes was a late scratch from the A's lineup on Tuesday because of soreness in his left hand and is scheduled to undergo an MRI on Wednesday.

Cespedes was seen nursing his hand after taking only a handful of swings during batting practice before departing the field, and manager Bob Melvin confirmed after his team's 7-3 win that the outfielder's injury was sustained while swinging.

In his place, Josh Reddick moved from right field to center field, where he compiled eight career starts while with Boston. Michael Taylor took over right-field duties, with Seth Smith starting in left field.

A's select Honorary Bat Girl for Mother's Day

OAKLAND -- Stephanie Serrano-Osorio will represent the A's on Mother's Day on Sunday as part of the 2012 Honorary Bat Girl program, which recognizes baseball fans who have been affected by breast cancer and are committed to "going to bat" in the fight against the disease.

Serrano-Osorio will be recognized on the field in a pregame ceremony before Oakland's contest against the Tigers and will receive pink MLB merchandise and two tickets to the game.

During the game, several players are expected to use pink bats by Louisville Slugger, stamped with the MLB breast cancer awareness logo. All players will wear a symbolic pink ribbon on their uniforms, along with pink wrist bands, to further showcase their support.

In addition, commemorative dugout lineup cards will also be pink.

Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.