What an interesting interview, from September 2008 but new to me:

I just remember he had kind of a dark sense of humor. I remember he was very soft spoken and he didn’t really press me for much information. He really just observed everything and I never felt like he was really around that much. He ended up actually spending more time with my coach since he kind of respected the fact that I was playing and concentrating on what I needed to do which kind of made it easier to work with him. A couple of weeks later he called me and was very upset that Details had decided not to run the article. They had decided that after he had finished the whole thing that his writing was too good for their audience.

Wallace's extraordinary July 1996 essay on Joyce and the professional tennis tour is available here. (Via Straight Sets.)