Kunishige Kamamoto, who was widely considered the greatest striker in Japanese soccer history, died of pneumonia at a hospital in Osaka Prefecture on Sunday. He was 81.Kamamoto was the soccer competition's top scorer with seven goals at the 1968 Mexico City Olympics, serving as the driving force behind the national team, which earned bronze to secure the country's first-ever soccer medal.A native of Kyoto Prefecture, Kamamoto started playing soccer in elementary school. After graduating from Yamashiro High School in Kyoto, he attended Waseda University in Tokyo and was the top scorer in the Kanto university soccer league for four consecutive years.