The PRP injection Murphy received in July has started to take effect, allowing him to ramp up the intensity of his base running.

Murphy (knee) has yet to resume catching and isn't expected to be activated from the 60-day injured list before the season ends Sept. 29, Evan Webeck of the East Bay Times reports.

Giants manager Bob Melvin said Saturday that Murphy (knee) has begun a hitting and running progression and could be an option to return from the 60-day injured list in September, MLB.com reports.

SAN FRANCISCO, CALIFORNIA – AUGUST 31: New San Francisco Giants catcher Andrew Knapp ... continues his rehab assignment with Sacramento. Tom Murphy (left knee sprain) is rehabbing in San ...

SAN FRANCISCO — When the ... 10-inning loss, the Giants are 72-78 and distantly fourth in the National League West. Free-agent catcher Tom Murphy, who signed a two-year, $8.25 million contract ...

BOTTOM LINE: The Washington Nationals host the San Francisco Giants to open a four-game series ... 60-Day IL (labrum), Tom Murphy: 60-Day IL (head), Ethan Small: 60-Day IL (oblique), Tristan ...

BOTTOM LINE: The Oakland Athletics lead 1-0 in a two-game series with the San Francisco Giants. Oakland has gone ... 60-Day IL (labrum), Tom Murphy: 60-Day IL (head), Tristan Beck: 60-Day IL ...

San Francisco Giants (62-62, fourth in the NL West ... 60-Day IL (labrum), Tom Murphy: 60-Day IL (head), Tristan Beck: 60-Day IL (arm) The Associated Press created this story using technology ...

BOTTOM LINE: The Milwaukee Brewers bring a 1-0 advantage into the next game of the series against the San Francisco Giants. San Francisco has a ... 60-Day IL (labrum), Tom Murphy: 60-Day IL (head) ...