I have a psychologist friend who suggested the other day to watch the game with the sound off?
Apparently, even taking away the ingredient of the commentary and crowd, removes a large set of triggers, and the stress elevated by them.
Makes sense if you think about it? A lot of the tension comes from the media build-up and hype, you are already on edge, prior, because we hate them so much.
If you simply watch the game, you don't need anything or anyone telling you what is happening before your eyes.
Try listening to the tennis on the radio, could be best game in history but it's all a bit meh, really.