The 23-year-old also missed significant time last season with a concussion. He played in just 36 games, 21 of which came with Triple-A Lehigh Valley.
The Phillies acquired Joseph in 2012 when they dealt Hunter Pence to the Giants. Joseph was a second-round pick by San Francisco in the 2009 First-Year Player Draft.
Daniel Popper is an associate reporter for MLB.com. He also can be found on Twitter @danielrpopper. This story was not subject to the approval of Major League Baseball or its clubs.