SAN FRANCISCO -- Taking a cue from Bruce Bochy, several Giants sported 49ers caps in the clubhouse Friday, one day after the manager eschewed his usual headgear for the Niners' deep-red lid.

Bochy initially donned the 49ers cap in support of quarterback Alex Smith, who was threatened with a $15,000 fine for wearing a Giants cap in his postgame interview sessions. The NFL permits its players to wear only league-licensed items 90 minutes before and after games.

One Giants player said that he and others changed caps to express support not just for Smith, but also for Bochy, who said that infielder Ryan Theriot provided the hats.

Asked how much feedback he received since word spread of his act, Bochy said, "Quite a bit. I've gotten a lot of texts from Niners fans and friends of mine. Not one negative one. That's unusual for a manager."

Posey faces challenge to win NL batting title

SAN FRANCISCO -- The numbers indicate that Buster Posey has a chance to win the National League batting title. History suggests that he's a long shot.

During baseball's modern era (since 1900), only three batting champions emerged whose primary position was catcher: Bubbles Hargrave (Cincinnati, 1926), Ernie Lombardi (Cincinnati, 1938; Boston, 1942) and Joe Mauer (Minnesota, 2006, 2008-09).

Catching's grueling nature has virtually eliminated those who wear the tools of ignorance from climbing toward the top of the batting charts.

"It's really, really difficult," Giants manager Bruce Bochy said. "You get beat up pretty good in the games."

The agreement Friday among Major League Baseball, the Players' Association and Melky Cabrera to allow the suspended Giants left fielder to disqualify himself from winning the NL batting title paved the way for Posey to pass Cabrera, who departed Aug. 15 with a .346 average. Entering Friday, Pittsburgh's Andrew McCutchen owned a .339 average, compared to Posey's .335.

Posey skirted a question about his batting-championship prospects.

"Personal achievements and accomplishments are always nice," he said. "But being fortunate enough to win the World Series in 2010, knowing how much fun that was and being able to share it with the guys on the team and the whole city -- ultimately, I know that's why I play the game, because that's where I get the most satisfaction."