Hoffpauir was one of three players added to the Cubs' roster on Tuesday, the day Major League teams could expand. Infielder Andres Blanco was activated from the disabled list, and pitcher Justin Berg was recalled from Iowa as well.
On Wednesday, the Cubs are expected to activate pitcher David Patton from the disabled list.
"We'll get them in the lineup," Cubs manager Lou Piniella said of the callups, which should total seven or eight. "If they perform and help us win baseball games, it'll be easier to write them in again. It's up to them. We'll pencil them in and give them a chance to play."
Hoffpauir was on the Cubs' Opening Day roster but batted .233 with eight doubles, one triple, eight home runs and 25 RBIs in 81 games. He wasn't surprised when he was demoted.
"You look back and look at my numbers and production and it is what it is," Hoffpauir said. "You don't hit, you don't stay. To me, it wasn't that big of a shock. I saw it coming."
However, upon his return, the Cubs are now 10 1/2 games behind the St. Louis Cardinals in the division. Hoffpauir is hoping to carry over the feeling he had at Iowa.
"I had fun," he said of what he did in the Minor Leagues. "I got back to having fun and not thinking so much. I think that has a lot to do with it. That's the main thing, having fun and playing hard."
At Iowa, Hoffpauir, 29, batted .217 with four doubles, three home runs and 13 RBIs in 23 games.
Blanco, 25, was batting .237 with five doubles, one home run and nine RBIs with the Cubs. He has been sidelined since Aug. 4 because of a strained left calf. Berg, 25, joins the Cubs for the third time this year. A reliever, he was 6-2 with a 2.43 ERA in 37 relief appearances this season.
Carrie Muskat is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.