Giants manager Bruce Bochy agreed that Posey, who left Sunday's game against Colorado early after being rocked by a foul tip off his facemask, could have caught against the White Sox. But Bochy said that using Posey strictly as a DH "was my call. I wanted him to get an extra day [off] in case he takes a shot off the mask."
Bochy said Michael Morse will replace Posey as the Giants' DH for Wednesday's series finale. That would give Morse essentially two days of rest, since Thursday is a scheduled off-day.
Chris Haft is a reporter for MLB.com. Read his blog, Haft-Baked Ideas, and follow him on Twitter at @sfgiantsbeat. This story was not subject to the approval of Major League Baseball or its clubs.