He convinces Miyagi to use a pain suppression technique to allow him to continue. As Johnny is about to be declared the winner by default, Daniel returns to fight. The match is a seesaw battle, with neither able to break through the other's defense. The match is halted when Daniel uses a scissor-leg technique to trip Johnny, delivering a blow to the back of the head and giving Johnny a nosebleed. Kreese directs Johnny to sweep Daniel's injured leg – an unethical move. Johnny looks horrified at the order but reluctantly agrees. As the match resumes, Johnny seizes Daniel's leg and deals a vicious elbow, doing further damage. Daniel, standing with difficulty, assumes the "Crane" stance, a technique he observed Mr. Miyagi performing on a beach. Johnny lunges toward Daniel, who jumps and executes a front kick to Johnny's face, winning the tournament. Johnny, having gained newfound respect for his nemesis, presents the trophy to Daniel himself, as Daniel is carried off by an enthusiastic crowd. "The Karate Kid" is a semi-autobiographical story based on the life of its screenwriter, Robert Mark Kamen. At age 17, after the 1964 New York World's Fair, Kaman was beaten up by a gang of bullies. He thus began to study martial arts in order to defend himself. Kamen was unhappy with his first teacher who taught martial arts as a tool for violence and revenge. So he moved on to study Okinawan Gōjū-ryū karate under a Japanese teacher who did not speak English, but was himself a student of Chōjun Miyagi. As a Hollywood screenwriter, Kamen was mentored by Frank Price who told him that producer Jerry Weintraub had optioned a news article about the young child of a single mother who had earned a black belt to defend himself against the neighborhood bullies. Kamen then combined his own life story with the news article and used both to create the screenplay for "The Karate Kid." Additionally, given John G. Avildsen's involvement with both films, Sylvester Stallone often joked with Kamen that the writer had "ripped off" the "Rocky" films with "The Karate Kid". DC Comics had a character called Karate Kid. The filmmakers received special permission from DC Comics in 1984 to use the title for the first film (and consequent sequels). A number of actors were considered for the part of Daniel, including Sean Penn, Robert Downey Jr., Charlie Sheen, Emilio Estevez, Nicolas Cage, Anthony Edwards, Tom Cruise and Eric Stoltz.