Normally we aren't terribly interested in tennis. We like it just fine, and we'll glance with more interest during the major tournaments. But it's not required viewing -- usually.

That said, a friend who is more of a tennis fan is staying at our house for a few days, and we know he recorded the semifinal match in the French Open today between Rafael Nadal and Novak Djokovic. We know how it ended, and we know it was spectacular.

But should we actually take the time to watch a sporting event of which we already know the outcome?

Normally, we say no. It takes away from the enjoyment if the winner is already known. But are some things worth watching regardless?

That is our question to you -- both in general for any sport, and in particular if you happened to watch this specific tennis match.