James Douglas Callahan (born August 24, 1994) is an American professional baseball pitcher who is a free agent. He has played in Major League Baseball (MLB) for the New York Mets.
James Douglas Callahan (born August 24, 1994) is an American professional baseball pitcher who is a free agent. He has played in Major League Baseball (MLB) for the New York Mets. (en)
James Douglas Callahan (né le 24 août 1994 à Florence, Caroline du Sud, États-Unis) est un lanceur droitier qui a joué pour les Mets de New York dans la Ligue majeure de baseball en 2017. (fr)