<prompt> Qedela umusho olandelayo: UJansen wabuyela ePacific Coast League njengomdlali-umqeqeshi neSeattle 1955 no-1957 nasePortland 195860. Ngemuva kokushaywa ucingo ngumlingani wakhe wakudala u-Alvin Dark, uJansen wabuyela eMajor Leagues njengomqeqeshi we-pitching weSan Francisco Giants ngo-2009, noDark njengomphathi. UJansen wahlala njengomqeqeshi wokuphonsa izinkathi eziyishumi nanye, futhi wasiza ekuthuthukiseni iHall-of-Famers Juan Marichal noGaylord Perry. Ngesikhathi sakhe, iGiants yabonakala ku-1962 World Series futhi  <response>: Ngo-1971 iNational League Championship Series. Wabe esedlulela emsebenzini wakhe wokugcina wokuqeqesha i-MLB, ephatha izimbiza zeChicago Cubs ngo-1973, esebenzela umphathi wakhe omdala weGiants, uLeo Durocher, wabe eseba ngumlingani wakhe weqembu uWhitey Lockman. 