SEATTLE -- Mariners manager Eric Wedge met with his team on Sunday morning and took responsibility for not noticing Saturday's missed call that gave a base on balls to Padres center fielder Cameron Maybin, who really only had three balls called on him.

Maybin would come around to score the game's lone run, as the Mariners fell, 1-0, to the Padres on Saturday night. After Seattle starter Doug Fister threw a ball in the dirt on a 1-2 count, the Safeco Field scoreboard count mistakenly went from 1-2 to 3-2. Fister's next pitch was a ball, and Maybin -- who said afterward that he thought the count was actually full -- walked to first.

No one noticed -- not Wedge, not home plate umpire Phil Cuzzi, not Fister -- and Wedge let his players know that in the end, it was his fault for not catching the mistake that ended up costing Seattle the game.

"I preach to these guys about being accountable, and I sure as heck need to be accountable for that yesterday," Wedge said. "So I felt I needed to get in front of them and let them know that one was on me.

"I just wanted to be accountable in front of them. Ultimately, I'm the captain of this ship and something like that can't happen, and that falls on me. I should have trusted my instincts with what I felt it was, and I didn't. And that's my fault. That can't happen."

Wedge said after Saturday's game that he thought he had just missed a pitch and didn't think much of it. On Sunday, utility man Adam Kennedy said, "It's not just on his shoulders," but he appreciated the first-year skipper's motion.

"We wouldn't expect anything less of him," said Kennedy, who started at third base on Sunday. "With or without him addressing us, those of us who know him would know he felt bad about it. You expect that from him -- it's the kind of guy he is."

Carp optioned down to Triple-A Tacoma

SEATTLE -- With righty Blake Beavan starting on Sunday against San Diego, left fielder Mike Carp was optioned down to Tacoma on Sunday.

"It's more about [catcher Miguel Olivo] and just making sure we've got some protection with [catcher Josh Bard]," Seattle manager Eric Wedge said. "Obviously, I'm giving Olivo another day today. His availability today is still somewhat uncertain right now. He's starting to up his activity, but we've just got to be real careful with the guy."

Olivo missed his fourth consecutive game on Sunday after leaving Tuesday's 5-4 loss due to cramps. He is listed out with a tight right hamstring. Bard has started in his place and is 3-for-11 through three games.

To make room for Beavan, who's starting in place of injured Erik Bedard, the Mariners also moved catcher Chris Gimenez to the 60-day disabled list from the 15-day DL. Gimenez strained his left oblique in Tuesday's loss to Atlanta.

Carp made his debut on June 8 against the White Sox. In 15 games, he batted .200 (7-for-35) with two doubles. Before he was called up, Carp hit .348 with 19 home runs and 58 RBIs in 57 games for Tacoma.

"I don't think it's a bad thing that he gets to go down and play for a little while," Wedge said. "He deserves to be up here, and we want to get him back up here at some point in time."

Worth noting

After missing the past two games with bruised ribs, second baseman Dustin Ackley started on Sunday in the rubber match against San Diego.

"We could have pushed him in there [Saturday], but we didn't feel that was the smart move," Wedge said. "He continues getting treatment and he's been doing some work [Sunday] morning, so we feel comfortable getting him back in there today."

Ackley made his debut on June 17 and has reached base in his first 12 MLB games. He's hitting .300 with two home runs and six RBIs.