- Peter Stats, Fantasy & | MLB.com
- O'Brien, 2015 Triple-A All-Star Game.jpg - Commons
- Marlins' O'Brien shows improved approach in return from minors | Miami Herald
- Profile: D-Backs' Peter
- Pete baseman) - Wikipedia
- Peter O'Brien Class of 2008 - Player Profile Perfect Game USA
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- Peter (50 photos)
- Arizona Diamondbacks O'Brien Busts Boom Stick
- Royals' Peter leaves teammates in with 'freaky' power | Kansas City Star
- Dodgers claim Peter O'Brien off waivers Rangers True Blue LA
- Peter O'Brien and his case for MVP the - The Cuban Baseball
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- Peter O'Brien found way home with Marlins -- and it could lead to his breakthrough - The Athletic
- MLB Rookie Report: Peter 1B-OF-C, Diamondbacks - Ball
- LIDOM: Peter O'Brien jugará con Leones del Escogido ESPN
- Peter O'Brien is forcing his way into the roster Royals
- Now No. 96 for Yankees, Possible Future Alternative to No. 13 - York Times
- Peter O'Brien Stats, Fantasy & News |