On January 6, 2011 at Histeria Boricua Perez challenged Rivera for the Undisputed World Heavyweight Championship which Pérez won the championship for first time. Throughout the first three months of 2011, he entered a feud with Tua.
On January 6, 2011, Histeria Boricua Perez won the Undisputed World Heavyweight Championship from Rivera in a match that marked Perez's first title win. During the following three months of 2011, he had a conflict with Tua.