- Mark Appel, top pick of 2013 draft, quitting baseballFOXSports.com
- Phillies minor-leaguer Mark Appel says he’s ‘stepping away’ from gamePress of Atlantic City
- Astros: Reflections on Mark Appel’s “break” from baseballClimbing Tal’s Hill
Mark Appel, top pick of 2013 draft, quitting baseball