Complex sentence: The Hanshin Tigers, located in Kansai, the second largest metropolitan area in Japan, are somewhat considered as the eternal underdog of Japanese baseball in opposition to the Tokyo Giants, still considered as the king of Japanese baseball.
Split into simpler sentences: The Hanshin Tigers are located in Kansai, the second largest metropolitan area in Japan. They are considered the eternal underdogs of Japanese baseball, in opposition to the Tokyo Giants, who are considered the kings of Japanese baseball.