Opposite ends - Should pro tennis allow on-court coaching?

NO

Andre Agassi: "The great thing about tennis is that it's two players out there. The homework is done before the match and you have to find a way to win. Coaches are an important part of your preparation but there's something really special about mano a mano."

YES

Alex Corretja: "When I'm playing badly, I feel like I'd just like to go home. But if your coach was on court he could pump you up a bit. It could be good for the spectators because it might improve the quality of tennis. Even a little chat with your coach after the set, I'd like that."