Yuki Kajiura | Kaori Yuki | Kazuhiro Sasaki | Sasaki | Yuki Maki | Yuki Ito | Yuki Ikeda | Yuki | Sasaki Yoshikiyo | Masami Yuki | Isao Sasaki | Yuki Urushibara | Yuki Masuda | Yuki Maeda | Yuki Kure | Yuki Koyanagi | Yuki Kiriga | Yuki Kawauchi | Sasaki clan | Nobuteru Yūki | Minoru Sasaki | Kyozan Joshu Sasaki | Kensuke Sasaki | Kazumasa Sasaki | Jun Sasaki | Chushingura: Hana no Maki, Yuki no Maki | BS Tantei Club: Yuki ni Kieta Kako | Akira Sasaki |
In total he fought 11 times in his MMA career, including five fights for Pancrase in Japan and took on top fighters of the era such as Koji Oishi, Antonio McKee, Satoru Kitaoka, Yuki Sasaki and Brad Gumm before retiring in 2006 in order to focus on his coaching commitments.
Continuing on his path of success, Santiago became Middleweight Champion, by defeating Yuki Sasaki, Logan Clark, Siyar Bahadurzada, and Kazuhiro Nakamura.