DENVER -- Buster Posey is at first base for the second straight day because of what he described as "general tightness" in his legs.
"It's normal with a lot of catchers," manager Bruce Bochy said.
Bochy said the condition is not serious and not related to the ankle surgery that Posey had in 2011. But it's enough of a hinderance that Posey was moved to first base again, pushing Brandon Belt to the bench for a second straight day. Bochy said he talked to Belt on Sunday morning to explain the situation.
"I didn't want him to think he's on the bench against lefties, but Buster could use another day from behind the plate," Bochy said.
Belt is one of the few Giants hitters who isn't slumping, but Posey is even hotter. The reigning MVP has 10 hits in his last 18 at-bats.
Bochy said the organization decided this spring that Belt would not see any time in left field, but that could change if Posey needs more time at first base. Belt started four games in left field last season.
"We wanted Brandon to concentrate on first base and Buster hadn't played that much first base until recently with all the days off," Bochy said. "We talked about (Brandon) going out there and taking fly balls. This will give us some flexibility."