Complex sentence: The brothers reached the final of the 2014 U.S. National Indoor Tennis Championships in Memphis, Tennessee but were unable to defend their title as they were beaten again by Butorac and Klaasen.
Split into simpler sentences: The brothers reached the final of the 2014 U.S. National Indoor Tennis Championships in Memphis. However, they were unable to defend their title as they were beaten again by Butorac and Klaasen.