INDIANAPOLIS — The San Francisco Giants are looking to add thump to their lineup, but not if it leads to more clanks in their infield.

So they haven't amplified efforts to acquire Florida Marlins second baseman Dan Uggla, who might be the surest run-producing infielder available via trade or free agency.

Instead, club and industry sources said the Giants are hoping to sign one from among the following pool of infielders: first basemen Nick Johnson, third baseman Adrian Beltre and versatile Mark DeRosa. They would play DeRosa at third, allowing Freddy Sanchez to remain at second.

One other possibility, second baseman Orlando Hudson, brings enough defensive upside that it might be worth moving Sanchez to third and Sandoval to first. First baseman Adam LaRoche is a back-burner option.

Uggla has the most demonstrated power potential, and as a right-handed pull hitter, he would be least affected by the move to spacious AT&T Park. But his skillet glove is problematic, as is the $7-9 million he would make in arbitration. And that's before the Giants factor in the cost of talent to acquire him.

The Giants hadn't scheduled a meeting with agent Scott Boras, who ventured into the Seattle Mariners' suite to talk about Beltre. But they're expected to touch base before the meetings conclude Friday.

So far, the meetings haven't been productive for Giants GM Brian Sabean, who chafed at the two-year contract the Washington Nationals gave to 38-year-old catcher Pudge Rodriguez. Manager Bruce Bochy said he liked Miguel Olivo or Yorvit Torrealba, but there's no hope either catcher will accept a one-year deal now.

Sabean said he might have to revisit the idea of top prospect Buster Posey as the everyday catcher if a suitable alternative cannot be found. The GM said there's no way he'll give any catcher a multiyear contract, and he flatly ruled out any chance of re-signing Bengie Molina.

"That ship has sailed," Sabean said. "They're way down the road talking to other teams."

While the Giants hope to get one hitter to fill the No. 3 and No. 5 spots around Pablo Sandoval, there's little chance they'll find two. So as much as it might make fans wince, they'll have to pin some hopes on better performances from returning players.

That includes shortstop Edgar Renteria, who was a bust while playing hurt in the first season of his widely panned two-year, $18.5 million contract. Giants Manager Bruce Bochy suggested Renteria could hit second behind a leadoff platoon of Eugenio Velez and Andres Torres; Sanchez could fit as the No.3 hitter.

"It's not etched in stone that Sanchy will be our No.2 hitter," Bochy said. "Edgar has experience there."

As they are currently composed, the Giants cannot claim to be strong up the middle. They have no starting catcher, and assuming Sanchez is the second baseman, both their middle infielders will be coming off injury-plagued seasons that ended with surgery. Valuable infielder Juan Uribe is testing the market, too, although Sabean had reason to believe the super-sub's agent could circle back to the team.

Center fielder Aaron Rowand is a mild concern as well. He hit .218 in the second half, and for the second consecutive winter, Bochy pledged to pace the hard-charging outfielder by giving him more days off before the All-Star break.

Andres Torres looks to have a significant role in 2010. He would back up Rowand in center field, and Bochy plans to stick him in right field on some days when Velez is in left. Bochy declined to label Nate Schierholtz as the heir apparent to Randy Winn in right field, saying he'll have to come to spring training and compete for a job just like everyone else.

—Sabean mentioned Emmanuel Burriss and Ryan Rohlinger as backup infielders in case Uribe doesn't re-sign. The GM curiously omitted Kevin Frandsen, who is a good bet to be traded.

The Giants discussed sending Frandsen and/or Fred Lewis to the San Diego Padres for third baseman Kevin Kouzmanoff, but talks didn't last long. The Padres want starting pitching, catching and a right-handed outfield bat — and there's no matches with the Giants there.

—Sabean ruled out a run at outfielder Johnny Damon and didn't sound too interested in soon-to-be 36-year-old Jermaine Dye.

"We want to stay young," Sabean said. "That's a blanket statement, not a comment against Dye."