File:Canberra Cavalry bullpen 2015-10-26.jpg - Wikipedia
Bullpen catcher - Wikipedia
Ricky Bones - Wikipedia
Andy Hawkins - Wikipedia
File:Citizens Bank Park Bullpen.jpg - Wikimedia Commons
Todd Coffey, Baseball Wiki
Bullpen Bulletins - Wikipedia
File:Omaha's bullpen looks on as Orlando Calixte makes a catch
File:Cardinals Bullpen, Los Angeles Dodgers 1, St. Louis Cardinals
File:Jeff Weaver from the bullpen.jpg - Wikipedia
Mark Gardner (baseball) - Wikipedia