Vogelsong will start Tuesday's game, CSN Bay Area's Amy Gutierrez reports. He gets the ball after Jake Peavy was scratched with a back issue. In other news, Matt Cain is experiencing forearm tightness, which is often a precursor for Tommy John surgery, so there seem to be some weak spots in the Giants' rotation to stat the season. Vogelsong was stretched out this spring as a precaution as Tim Lincecum was also ailing, so look for him to be able to pitch fairly deep into Tuesday's game.