Originally Posted by Topspin Shot
OP stands for original poster. Since you started this thread, you are the OP on this thread. And I'd like to know, what is your first serve percentage? I still think a low first serve percentage may be at the root of your problems, even after seeing the video, which shows some decent serving.
^ this is correct, and is also used to mean: original post.
- Hope this helps, OP! (you've been addressed at the Original Poster)
- Well, in the OP it cleary states [THE ARGUMENT] (the original post has been addressed).