Walding was optioned to Triple-A Lehigh Valley prior to Wednesday's matchup with the Dodgers, Scott Lauber of The Philadelphia Inquirer reports.
Walding is 0-for-10 through 10 games in the major leagues this season after multiple stints with the big club. He'll head to the minors so Philadelphia can make room on the roster for another arm following a 16-inning contest with the Dodgers on Tuesday.