Entering Sunday, the Cubs had only scored 22 runs in their previous seven Cactus League games, but manager Dale Sveum isn't concerned about his team's offense.

"You ain't gonna know anything until you get all eight (regulars) out there and playing," Sveum said before Sunday's game against San Diego. "The other stuff is what it is. You got a lot of young kids, raw kids, they're not very patient at the plate, they're making quick outs. That's a concern for another day. But I'll be more concerned when I'm putting my regular eight guys out there and (Anthony) Rizzo's here and (Starlin) Castro's here before I start worrying about that."

The Cubs' offense came out of its shell Sunday, plating nine runs against San Diego at HoHoKam Stadium. Dioner Navarro, Jorge Soler and Christian Villanueva homered, while Alfonso Soriano added a two-run double in the team's first offensive outburst in over a week. The Cubs' nine runs were the most they've scored since the team's Cactus League opener Feb. 23.

Sveum has been without Rizzo (World Baseball Classic) for the last week and Castro since late February, so whatever concerns exist are about an incomplete product. Still, as Sveum put it, "It's not that easy to not get 10 hits in the Cactus League, and we haven't done it in quite a while."

That is, at least until Sunday -- the Cubs recorded 10 hits against San Diego.

The Cubs' lineup will begin to feature more regulars and major-leaguers in the coming days, with Opening Day three weeks from Monday. Castro will return to the lineup Wednesday, while Rizzo will return from the second round of the WBC in Miami no earlier than Thursday.