Complex sentence: In 2005, he was recognized as the oldest living former Major League Baseball player following the death of former St. Louis Cardinals third baseman Ray Cunningham, who passed away at 100 years of age.
Split into simpler sentences: In 2005, he was recognized as the oldest living former Major League Baseball player. He gained this distinction when a former third baseman for the old St. Louis Cardinals, Ray Cunningham, died in 2005 at 100 years of age.