Adrien Broner
On June 5, 2017 reports circulated around Argentina that WBC mandatory challenger Jorge Sebastian Heiland (28-4-2, 15 KOs) would be ordered to fight Charlo in a final eliminator. Heiland had been the mandatory since 2015. Early talks indicated the fight could take place on the undercard of the Mikey Garcia vs. Adrien Broner undercard. On June 9, the WBC officially ordered the fight between the two, with the winner becoming the mandatory challenger for the winner of Canelo Álvarez vs. Gennady Golovkin, which would take place in September 2017. The fight was officially announced on June 27. Charlo weighed in a career high 159.2 pounds while Heiland came in slightly lighter at 158.2 pounds.