"We'll give him a day," Bochy said. "We were trying to get it to loosen up and I just made the decision instead of grinding on that thing so hard, give Gregor [Blanco] a game."
Bochy added Span should return to the lineup Saturday.
Span entered Friday batting .253 with 30 RBIs in 76 games this season, his first in San Francisco.
Span shouldn't be heading to the DL, where currently there are several key pieces of the Giants' roster. Only three players from San Francisco's Opening Day roster were in Friday's lineup, although Buster Posey was just taking a routine day off.
• Second baseman Joe Panik (concussion symptoms) is on the seven-day DL and did not travel with the team to Arizona. Bochy said Panik is in good spirits, but it is still too early to tell if he'll be ready to be activated at the end of the seven days.
"He's starting to do some physical activity, see how he reacts to that, normal stuff," Bochy said.
• Starter Matt Cain (right hamstring strain) was scheduled to pitch Friday night in a Rookie-level Arizona League game. He is set to make another rehab start for a Minor League affiliate before rejoining the Giants' rotation after the All-Star break.
• Reliever Sergio Romo (right elbow flexor strain) pitched an inning for Triple-A Sacramento on Thursday night. He is expected to pitch for them again Friday, but is nearing a return to the Majors.
Jake Rill is a reporter for MLB.com and covered the Giants on Friday. This story was not subject to the approval of Major League Baseball or its clubs.