The team recalled outfielder Darin Ruf from Triple-A Lehigh Valley in a corresponding roster move. Ruf has appeared in eight games with Philadelphia this season, and in 11 at-bats has one hit.
Mayberry is hitting .213 with six home runs and 21 RBI in 63 games this season.
The Phillies look to make moves as the trade deadline approaches, as they sit at 43-57, last in the National League East, 13 games behind the first place Washington Nationals.
- Scooby Axson