Obviously boxrec isn't the most reliable source when it comes to these things but has there been any talks about making this fight happen?
Here is the link
http://www.boxrec.com/date_search.php?yyyy=2009&mm=05&dd=30
They also list Angulo-Cintron and Berto-Urango on the card.
Last thing i read said Berto-Urango may not happen.
Here is an article i found. Im not sure about the website though, so i don't know how much truth there is to it.
Tis in Spanish.
http://www.notifight.com/artman2/publish/Reporte_7/Mayorga_recibe_oferta_para_enfrentar_a_Santos.php