Buster Posey sits (elbow soreness), Chris Heston ready for Sunday A day after getting drilled just above his left elbow by pitcher Michael Wacha, Buster Posey is out of Saturday’s lineup. Posey expects to be in Sunday’s lineup, and Bochy said it should be a one-day absence. Rookie Chris Heston is feeling better after taking a break and figures to be re-energized for his start Sunday. Heston didn’t pitch for Triple-A Sacramento but joined the team during its stay in Omaha and Des Moines and spoke with River Cats pitching coach Dwight Bernard, player personnel chief Dick Tidrow and several ex-teammates familiar with his pitching, including Jake Dunning and Brett Bochy. The lineup: LF Aoki, 3B Duffy, 1B Belt, RF Byrd, CF Blanco, 2B Tomlinson, C Susac, SS Adrianza, RH Vogelsong. John Shea is a San Francisco Chronicle staff writer.