Yasuhiro Kojima (小島泰弘 Kojima Yasuhiro) (July 22, 1937 – November 27, 1999) was a professional wrestler and the trainer of Hulk Hogan, "Mr. Wonderful" Paul Orndorff, Scott Hall, Lex Luger, Ron Simmons, Keiji Mutoh, and many other professional wrestlers. He was better known as Hiro Matsuda, an identity he adopted while competing in the southern U.S., inspired by earlier wrestlers Sorakichi Matsuda and Matty Matsuda. As a trainer, Matsuda was famous for being very stiff with his trainees to toughen them up and teach them to respect the business. His most famous story involved him being very tough on a young Hulk Hogan in his first day of training and breaking his leg. After Hogan healed, he came right back to Matsuda's school, looking to continue his training. Matsuda was so impressed by his display of "guts" that he trained him properly from that day on.