Is already done. Juanma will fight Rafael if he get a win over Concepcion. The fight will be the main event in the MGM.
Here the proof:
http://www.elnuevodia.com/conetiquetadeclasico-732640.html
I think Concepcion fight Juanma should practice his boxing skills for Rafael, because if he came with the same gameplan as the past two fight, he going to be KO by Rafael Marquez.