By Miguel Rivera

Middleweight contender Marco Antonio Rubio (56-6-1, 49KOs) went face to face with Saturday's opponent, Marcus Upshaw (15-8-2, KOs) during their open workouts. Upshaw has had a few upsets over the years and plans to make Rubio his next victim. Also on the card is female statr Arely Mucino (16-2-1, 9KOs), who face Marisa Portillo (13-7-2, 2KOs) and junior welterweight Mahononri Montes (27-1-1, 20KOs) takes on Jose Lopez (17-3-1, 10KOs).