Undefeated junior welterweight puncher Lucas Martin Matthysse (24-0, 22KOs) will return on the undercard of Jorge Rodrigo Barrios vs. Michael Lozada at the Buenos Aires Lawn Tennis Club in Buenos Aires, Argentina. Matthysse will take on Florencio "Chombo" Castellano (16-3, 13KOs) of Colombia. HBO Plus in Latin America will carry the card. [details]