Complex sentence: Warren Edward Spahn (April 23,1921--November 24,2003) was a Major League Baseball left-handed pitcher who played his entire 21-year baseball career in the National League.
Split into simpler sentences: Warren Edward Spahn (April 23,1921--November 24,2003) was a Major League Baseball left-handed pitcher. He played his entire 21-year baseball career in the National League.