Complex sentence: AutoZone Park is a minor league baseball stadium located in downtown Memphis, Tennessee that is the home of the Memphis Redbirds of the Pacific Coast League (PCL), which is the AAA affiliate of the St. Louis Cardinals.
Split into simpler sentences: AutoZone Park is a minor league baseball stadium located in downtown Memphis, Tennessee. It is the home of the Memphis Redbirds of the Pacific Coast League, or PCL, which is the AAA affiliate of the St. Louis Cardinals.