Satoshi Snatches Horie’s Back for Lightning RIZIN Title
Roberto Satoshi de Souza submitted Yoshinori Horie with a rear-naked choke at 1:40 of round one at RIZIN.51 on September 28, 2025, in Nagoya, Japan. The lightweight champion retained his belt without allowing the main event to develop into a prolonged striking contest.
A scramble becomes a submission
Horie answered Satoshi’s kicking attacks with punches in the opening exchanges. The champion then committed to a low takedown entry and moved rapidly around to Horie’s back. From a position riding behind his challenger, Satoshi secured the choke and forced the tap.
The speed of that transition was the defining feature of the finish. Satoshi did not need an extended spell of control to turn his grappling position into a title-winning submission. Horie had little time to recover once the champion established himself behind him.
A belt stays with its champion
Afterward, Satoshi described the victory as his fifth successful defense and expressed a desire to compete again that year. His title remained in place after another first-round finish.
