Extra bases

Mike Olt, who had some soreness in his right shoulder, is continuing to work at third base, and Renteria said the infielder could play there in a Cactus League game soon.

Olt has been able to play first base because the throws put less stress on his shoulder.

"He's building up to [playing third]," Renteria said Monday. "We'll keep going out there and make sure he's progressing and feeling comfortable. I'll say shortly he'll be over there."

• Renteria was a teammate of Bonds in the Minor Leagues with the Pirates. Renteria was a first-round pick in the 1980 First-Year Player Draft; Bonds was the Pirates' No. 1 pick in 1985. They were together at Triple-A Hawaii in 1986.

On Monday, Bonds rejoined the Giants to help coach.

"We played together in Triple-A," Renteria said. "He was up in June and never came back."

Bonds actually made his Major League debut May 30, 1986; Renteria made his Sept. 14 that year.

Renteria was on the Padres' coaching staff when Bonds played his last game in the Major Leagues on Sept. 26, 2007.

"He was always, quite frankly, an excellent baseball player," Renteria said. "My memories of him are that he was an excellent baseball player."

• Outfielder Mitch Maier, a non-roster invitee, has yet to play in a game because of back problems that started right before Cactus League games began. He's been getting a lot of treatment and taking advantage of the new hydrotherapy pool at the Cubs' complex.

"Obviously, it's Spring Training, and I'd rather miss some time in spring instead of the season," Maier said. "I'm hoping for the best and we'll go from there. I've got to get healthy to get on the field."

Carrie Muskat is a reporter for MLB.com. She writes a blog, Muskat Ramblings, and you can follow her on Twitter @CarrieMuskat. This story was not subject to the approval of Major League Baseball or its clubs.