//...he is a good commentator//
We must be listening to a different Boris Becker, emmie. I wouldn't know whether his comments are sound or not because he is largely unintelligible. Couple this with the fact that many tennis commentators (and Andrew Castle is among the worst culprits) do not commentate but reminisce about their past exploits, with most of that being done when the crowd is shouting and screaming, and their efforts (such as they are) are a complete waste of time and money. When Becker and Castle get together they might as well be in the pub or at a dinner party, having a chat about their playing days. Meanwhile, things that the cameras didn't catch, such as a line call that you didn't hear, go unreported whilst they discuss what went on in the locker room in 1985. Watching tennis is far more pleasant with the sound muted.