SCOTTSDALE, Ariz. — Tim Lincecum was supposed to pitch two innings against the Milwaukee Brewers on Sunday, but he dispatched hitters with such cold efficiency that he went out for a third.

If he's this sharp against the Brewers on opening day, he'll probably go all nine.

"Right on schedule," Giants Manager Bruce Bochy said after Lincecum retired all nine hitters he faced.

Lincecum's major goal this season is to reduce walks and be more economical with his pitches. He threw just 10 in the first inning Sunday, seven in the second and 10 in the third. Of his 27 pitches, 19 were strikes.

Lincecum said he hasn't found a consistent release point for his curveball yet, which might have stymied him in the past. But his dipping change-up has become his best off-speed pitch, and he pounded the outside corner with his 95 mph fastball.

Most important, he maintained focus on the mound. Lincecum hasn't forgotten his first Cactus League game, two springs ago, when the Brewers shelled him.

"I remember feeling I had to throw every fastball past every guy and I needed every curveball to be devastating," Lincecum, who will take the ball against Milwaukee for the opener April 7 at AT&T Park, said. "It goes to show it's about the quality of the pitch, not how hard it's thrown. It's more about messing with the hitter's head and with his timing."

—Pitchers haven't found a way to disrupt Pablo Sandoval's timing yet. The switch-hitter worked a 14-pitch at-bat, including nine foul balls, against Milwaukee right-hander Dave Bush. The confrontation ended with a lined single to center field and a standing ovation.

—Bochy returned to San Francisco Sunday night and will undergo arthroscopic surgery today to repair torn cartilage in his right shoulder. He plans to return tonight and resume his duties Tuesday.

"I want to be able to function and do all the things I'd like to do," said Bochy, who should be able to throw batting practice by June.

Bochy, who hasn't had any type of surgery since 1986, joked that he picked one heck of a way to wiggle out of a bus ride to Surprise. Bench coach Ron Wotus will oversee today's exhibition against Kansas City.

—The Giants are light on outfielders. Nate Schierholtz was scratched because of back spasms that might be contributing to his sore hamstring. Fred Lewis continues to play every other day as the Giants mind his surgically repaired right foot. And Dave Roberts, who will start today, had been limited because of mild soreness in his left knee.

—Randy Johnson will face the Arizona Diamondbacks on Tuesday, which is sure to attract local fanfare. The Big Unit called it "no big deal to me. It's just spring training." It might be a bigger deal for his former Arizona teammates, though.

"Of course we have tremendous respect for him," Conor Jackson told the Arizona Republic. "It's going to be a little awkward seeing him in a different uniform. I've never faced him personally. It'll be a daunting task, I guess you could say. I'm sure he's not a comfortable (at-bat).... It'll be good to get some under your belt for when we see him in the regular season."

—The Giants won 5-2 on John Bowker's three-run home run in the sixth inning off Milwaukee right-hander Joe Bateman. Familiarity helped. Bateman, a former Giants farmhand, played parts of three minor league seasons with Bowker.