Complex sentence: He had a major supporting role in helping bring major league baseball to Los Angeles, resulting in the Dodger games being carried on KFI and Dodger owner Walter O'Mally becoming a board member of Earle C. Anthony, Inc., according to his biographer, Arthur Landing.
Split into simpler sentences: He had a major supporting role in helping bring major league baseball to Los Angeles. This resulted in the Los Angeles Dodger games being carried on KFI and Dodger owner Walter O'Mally becoming a board member of Earle C. Anthony, Inc., according to his biographer, Arthur Landing.