Rafa Nadal slicing (2009). Nadal is an expert in passing shots; they are an important part of his playing style. The slice is a very effective way to make a passing shot from running.
A passing shot is a forceful shot, as in tennis or handball, that travels to one side out of the reach of one's opponent. In tennis, this shot is mostly used when one's opponent is running to the net or if he is at the net already.