Complex sentence: Henry Knight "Heinie" Groh (September 18,1889--August 22,1968) was an American third baseman in Major League Baseball who spent nearly his entire career with the Cincinnati Reds and New York Giants.
Split into simpler sentences: Henry Knight "Heinie" Groh (September 18,1889--August 22,1968) was an American professional baseball player. He played as a third baseman in Major League Baseball, spending nearly his entire career with the Cincinnati Reds and New York Giants.