YOU can influence the culture of your doubles partnership by having intentional conversations with her about responses to scenarios.
We have all had opponents or captains that want to win at all costs - like their happiness relies on points from tennis - but it's okay not to fall into that trap.
Long term bliss NEVER comes from results - that type of wellbeing and joy is developed over time from BEING A GOOD PERSON.
Make sure to have some tools ready for situations where the opponents or teammates are out of alignment with the Divine - so that you can reject it in a peaceful way.
Stay true to LOVE!