Pittsburgh activated Neil Walker from the disabled list after the second baseman missed three weeks with a lacerated finger.
Walker needed six stitches after being spiked by Cardinals shortstop Pete Kozma on April 27.
After initially turning to Brandon Inge at second base in Walker’s absence the Pirates moved on to Jordy Mercer. But despite hitting three homers in nine games Mercer is headed back to Triple-A to make room on the roster for Walker.