As much as I hate LeCrab on the court, he's obviously not stupid. LeBron James knows that he is ready, but he's making darn sure with quotes like this that his team doesn't think we're going to be a walk in the park.
I guarantee that he is wondering like us all just how KG is going to show up in rounds one and two. Plus, we have beaten them quite handily in Boston without Garnett and he knows it can happen again. So, it is not surprising that he'd say this and possibly actually mean it. I somehow doubt that Mo Williams really understands how dangerous we are without being reminded and this is most likely what LeBron is doing here.