PEORIA, Ariz. -- Mat Latos, who was scheduled to pitch three innings in Sunday's 7-6 win over the A's, struggled with his command and recorded just two outs before being removed from the game.

Latos, making his second Cactus League start for the Padres, allowed three runs on two hits and two walks before left-hander Colt Hynes came on with two outs in the first inning. He was visibly frustrated with his outing, but said everything -- except the results -- was fine.

"I executed what I needed to do," Latos said. "I was finishing and falling through. I felt like I was throwing a lot more strikes than what were called. There's nothing I can do about it."

The right-hander suffered control problems from the get-go, walking leadoff hitter Cliff Pennington before allowing a single to Daric Barton. Another walk to David DeJesus loaded the bases. Josh Willingham and Kevin Kouzmanoff hit sacrifice flies before Kurt Suzuki knocked Latos out of the game with an RBI double.

Latos threw 38 pitches and recorded just 21 strikes. It was similar to his first start of the spring on Tuesday, when he lasted just 1 1/3 innings and walked four batters. Only 15 of his 34 pitches went for strikes in that outing.

Latos, though, said he felt this outing was an improvement on his first start.

"It was fine," Latos said. "I made the correction I needed to. I was staying back."

Maybin could return to action on Monday

PEORIA, Ariz. -- Center fielder Cameron Maybin could return to action on Monday after battling concussion symptoms stemming from when he hit his head on a post fielding a fly ball during Wednesday's practice.

Maybin, who has been held out of game action since the injury, had his first full workout on Sunday, including live batting practice, and said the concussion symptoms have passed.

"I'm feeling good," Maybin said. "Hopefully, I'm in there tomorrow."

Padres manager Bud Black was also optimistic that Maybin could return against the Royals on Monday at Peoria Stadium.

"He did some work in the cage yesterday and played catch," Black said. "And he's been doing some cardio stuff in the gym. Today he's going for a full day, so hopefully tomorrow he'll be back."

Maybin, 23, is expected to be the club's starting center fielder this season after being acquired over the offseason in a trade that sent relievers Edward Mujica and Ryan Webb to the Marlins.

Zaun feels strong after catching debut vs. A's

PEORIA, Ariz. -- Veteran catcher Gregg Zaun batted sixth and started his first Cactus League game of the season behind the plate in Sunday's 7-6 walk-off win over the A's, going 0-for-2 in his three innings.

Zaun, who turns 40 on April 14, has been recovering from surgery that repaired a torn labrum in his right shoulder, but he has progressed enough to make his catching debut with the Padres after accumulating four at-bats in designated-hitter appearances.

"I felt fine," Zaun said. "My legs feel good, so it felt like it always did. I had plenty of chances to move around back there, and I thought I moved pretty good. So it felt like old times."

Nevertheless, Zaun, citing weakness in his throwing arm, said on Monday that he would retire.

After Sunday's outing, though, Padres manager Bud Black said he has been particularly impressed by how far Zaun's arm strength has come, and he said he's monitoring it every day.

"It's a marked improvement from the first day of camp," Black said. "The ball is coming out fine."

Zaun said he's still dealing with fatigue issues, even though the arm strength is there and he feels no pain in his shoulder.

"It's getting there," Zaun said. "It fatigued pretty quickly today, which was pretty disappointing. But it's coming along pretty nicely, and physically, I'm not disappointed."

Zaun signed a Minor League deal with the Padres this offseason after batting .265 with two home runs and 14 RBIs in 28 games with the Brewers last year. He's competing to become the backup to starting catcher Nick Hundley.

Bench coach Renteria feels well, to return soon

PEORIA, Ariz. -- Padres bench coach Rick Renteria, who underwent surgery after being hit in the mouth by a line drive during Thursday's batting practice, is feeling better and is expected to return to his normal duties in the next few days.

"He's doing better every day, but you won't see him today," said manager Bud Black. "He's still in a little bit of pain, and I think the doctors want him to take it easy the next couple of days."

Renteria was struck above the upper lip by a line drive from Mike Baxter that caromed off a pitching screen bar, breaking his maxillary bone.