If you’ve played tennis at least a little, you probably have some idea how hard a game is to play really well. I submit to you that you really have no idea at all. I know I didn’t. And television doesn’t really allow you to appreciate what real top-level players can do — how hard they’re actually hitting the ball, and with what control and tactical imagination and artistry. I got to watch Michael Joyce practice several times right up close, like six feet and a chain-link fence away. This is a man who, at full run, can hit a fast-moving tennis ball into a one-foot square area seventy-eight feet away over a net, hard. He can do this something like more than 90 percent of the time. And this is the world’s seventy-ninth-best player, one who has to play the Montreal qualies.