Complex sentence: He is best remembered for his brilliant performance for the Boston Red Sox in the postseason, named World Series M.V.P. prior to the New York Mets' miraculous comeback in Game Six of the World Series.
Split into simpler sentences: He is best remembered for his brilliant performance for the Boston Red Sox in the postseason. He was even named World Series M.V.P. prior to the New York Mets' miraculous comeback in Game Six of the World Series.