The Giants recalled Frandsen from Triple-A Fresno before Tuesday's game in place of first baseman Travis Ishikawa, who was placed on the bereavement list due to the death of his grandfather.
"Could he [stick]? We will re-evaluate in a couple of days with [general manager] Brian [Sabean] and depending on our situation [at the time]," Giants manager Bruce Bochy said. "He has been playing well down there since he returned to Fresno.
"We need a little help here. A couple of guys could use a break. He'll get some playing time and play at least two, if not three [in the D-backs series]."
Frandsen was in the lineup Tuesday, playing second base and batting seventh against Arizona's Billy Buckner.
"It's always good to be back," Frandsen said. "No one is happy about going down, and when you get that shot again, you work your butt off to make it hard for them to make that decision again."
Frandsen returns to the club in a groove, hitting in nine straight games at Triple-A, going 20-for-41. It's the other end of the spectrum from his big league production in 2009, as he went hitless in 16 at-bats from May 17-29.
"I'm here to do whatever they ask, whatever role it is," Frandsen said. "I approach the game the same way every day. I'll just work my butt off and see what happens."
Frandsen, 27, has played five positions at the Major League level and is a career .330 Triple-A hitter. He is starting to be pigeonholed as a utility-type player, but Frandsen, who has a .243 career average in 374 at-bats, is fighting that perception.
"The Giants don't see me as an everyday player, but I see myself differently," he said at the time of his first demotion this season. "At a certain point, you realize a lot more teams need help, no matter how much my heart is set on this team."
The frustration obviously didn't change his approach to the game as his numbers in Fresno have shown, hitting .339 with five home runs and 24 RBIs in 43 games.
Bochy said Frandsen could also see time at third to give Pablo Sandoval a day off in this three-game series.
Jason Skoda is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.