By Matt Kawahara -
Updated: 4:25 pm
Buster Posey didn't really have a role in Friday's flag-raising ceremonies: While they were happening, he was warming up starting pitcher Barry Zito. Today, though, the pre-game festivities will be all about Posey, who will be presented with his 2012 N.L. Most Valuable Player award in a ceremony scheduled to include past Giants MVP winners.