SAN DIEGO -- The Miami Marlins have placed first baseman Neil Walker on the 10-day injured list with a strained right quad and recalled infielder JT Riddle from Triple-A New Orleans.
The moves were made before Friday night's series opener against the Padres.
Walker pulled up running out a groundout in the sixth inning against San Francisco on Thursday.
He was hitting .295 with four homers and 14 RBI.