Murphy is being evaluated for a left knee injury after exiting Saturday's game versus the Phillies, Shayna Rubin of the San Francisco Chronicle reports.
Murphy tweaked the knee as he tracked down a wild pitch in the second inning in rainy conditions in Philadelphia. He's the second Giants catcher to go down in a day's time, as Patrick Bailey was just placed on the 7-day concussion injured list, though the extent of Murphy's injury remains uncertain. Blake Sabol took over for Murphy on Saturday.