text: in tennis what is called when you hit the net of a serve and it goes it? in tennis what is called when you hit the net of a serve and it goes it? is it a let? or a net? what about when like a ball rolls on your count from a different sourt during a point? is that a let? it's called a let. when a let occurs, the serve is redone. if the server is on their first serve and they get a let, they redo their first serve. that is why some players say "take two" when the server hits a let. the same with the second serve. but if the ball hits the net and goes out, it counts as a fault.