Blimey! There's so many things flying around Twitter now about Rafa playing in Mexico that there's too many to source!
And its for real because this link is up via the ATP website announcing that Rafa has confirmed for 2013!!
I still don't know what to make of it, and it may only become clearer next year when and/or if we see the rest of his schedule. Will he drop the 500 series in Barcelona, his "club" tournament in Spain?? Not likely. Will one of the US hardcourt 1000s go?? Will this turn out to be an addition to his season instead of him having the whole of February off?