Some time in February, IIRC.
thanks for the info.
I think he should be more careful about his communication everywhere it was written "Nadal stops Davis cup" ... as well as Ferrer and Lopez, and Verdasco a few days later of course it made drama ! Besides, clearly it's his announcement which led to the other players' words.
If he only meant "I will play Davis cup less often" (and he had already missed quite many of the DC ties before, especially when playing away, which is what Spain was going to do in coming years -they were lucky with the draw in 2012- considering the rule), he didn't need to talk much.
Even in recent times I had the impression that his communication is not well managed : clear and coherent, harmonized between several persons, is always the best.