Passage: Jericho then began a long feud with Dean Malenko, in which Jericho repeatedly claimed he was a better wrestler than Malenko, but refused to wrestle him. Because of his mastery of technical wrestling, Malenko was known as "The Man of 1,000 Holds", so Jericho claimed to be "The Man of 1,004 Holds"; Jericho mentions in his autobiography that this line originated from an IWA interview he saw as a child, where manager Floyd Creatchman claimed that Leo Burke, the first professional wrestler to be known as "The Man of 1,000 Holds", was now known as "The Man of 1,002 Holds", to which Creatchman stated that "he learned two more".

Question: Who did Jericho have a rivalry with?
Dean Malenko