FRISCO, Texas — Up and down he jumped, screaming “Fuck yeah,” over and over. The sight of Roman Gonzalez dominating his foe in a title fight was once as certain as the lilies blooming in April.

Juan Francisco Estrada and Roman "Chocolatito" Gonzalez are set to battle one more time. The future Hall of Famers have signed contracts for a unified 115-pound championship fight on March 5 at ...