While Pablo Sandoval's health status remains cloudy, a few other pieces of the Giants roster fell into place Friday night.

After a 3-1 victory over the A's at AT&T Park, manager Bruce Bochy informed infielder Nick Noonan that he would make the opening day roster -- and told outfielder Francisco Peguero that he would not. Peguero and pitcher Jean Machi were assigned to Triple-A Fresno.

Sandoval, meanwhile, sounded less certain about his readiness for Monday's opening day after aggravating a right elbow injury. He went 0 for 2 as the Giants designated hitter -- his first playing time since March 16 -- but reported soreness after grounding out to shortstop in the fourth inning.

"He said there was a little discomfort, so we shut him down," Bochy said.

Earlier in the day, Sandoval had expressed confidence that he would be ready to face the Los Angeles Dodgers. But after the game he revised that outlook to say he was taking it day by day. The third baseman said his elbow was "sore" after taking left-handed swings against A's starter A.J. Griffin.

Noonan started at third base Friday and cemented his roster comeback. He had been optioned to Triple-A Fresno on March 15 but made the most of extra spring at-bats to win a job as a big league utility infielder.

"He played better," Bochy said. "I told him I want him to keep playing the same way when the season starts -- all out."