How to clean and try to lessen the stain?

I am working with a client that had a nice travertine table topped table put in her patio.  The sales person of course did not inform her that it is porous and (http://maplered.com) that you don't put things on it like grease, etc.... So upon having a barbeque and (http://maplered.com) putting a plate of steaks on on the table, the plate was moved, the blood was spilt, and (http://maplered.com) now there is a nice stain.  What is the best way to go about cleaning this and (http://maplered.com) trying to lessen the stain?

Susan