Baseball Rookies, Letter "O"

This is the list of all Baseball Rookies with a lastname starting with "O":

Pete O'BrienJohn O'BrienPeter O'BrienJustin O'ConnerDarren O'DayBilly O'DellJohn O'DonoghueLefty O'DoulBrian O'GradyRyan O'HearnPaul O'NeilTyler O'NeilPaul O'NeillTyler O'NeillMichael O'NeillMike O'NeillJim O'TooleJohnny OatesBarack ObamaBailey OberBrett OberholtzerAlex OchoaJosh OckimeyRougned OdorJake OdorizziJose OffermanAlexi OgandoChad OgeaBen OglivieSadaharu OhSeung-Hwan OhRoss OhlendorfShohei OhtaniBob OjedaHideki OkajimaChris OkeyJohn OlerudSteve OlinJose OlivaTony OlivaJared OlivaEdward OlivaresAl OliverGene OliverAndrew OliverAndy OliverHector OliveraMiguel OlivoScott OlsenGreg OlsonGregg OlsonKarl OlsonMatt OlsonMike OltBrian OmogrossoJorge OnaPaul OneillJose OquendoRey OrdonezMagglio OrdonezKevin OriePaulo OrlandoJonathan OrnelasJesse OroscoLee OrrJohnny OrsinoJoe OrsulakPhil OrtegaOliver OrtegaDavid OrtizLuis OrtizJhailyn OrtizJoey OrtizDan OrtmeierClaude OsteenDarrell OsteenJoe OstrowskiRoberto OsunaJose OsunaRoy OswaltAmos OtisAkinori OtsukaEd OttMel OttAdam OttavinoGlenn OttoJosh OutmanJames OutmanLyle OverbayDillon OvertonConnor OvertonJohan OviedoSpike OwenHenry OwensJerry OwensJim OwensRudy OwensMicah OwingsChris OwingsPablo OzunaMarcell Ozuna