Giants pitcher Chris Heston throws against the Philadelphia Phillies during the first inning of a in San Francisco, on July 12, 2015.
Giants pitcher Chris Heston throws against the Philadelphia Phillies during the first inning of a in San Francisco, on July 12, 2015. Jeff Chiu Associated Press file
Giants pitcher Chris Heston throws against the Philadelphia Phillies during the first inning of a in San Francisco, on July 12, 2015. Jeff Chiu Associated Press file