Many years ago, a friend told me if I wanted to know what playing craps in Las Vegas was like, all I had to do was light $1000 on fire then have him punch me in the mouth. I have played craps many times since and can attest to the fact losers built Las Vegas. Yet, I still hopingly go. (I just might have made a word up there.)
Let me save you from wasting your gas, ticket, popcorn & drink money. It wasn't terrible. It wasn't good. It was like a bowl of warm-ish ocra - just barely palleteable. Trust the audience ratings - don't go.
You will miss a confusing, meandering, hitting the wavetops of a going back-in-time movie mashed with a groundhog day experience.
The movie doesnt really allow you to become invested in the primary characters which makes for an unsatisfying tennis sports story, punctuated frequently with several, "...I think that was supposed to be a pivotal moment but I'm not sure" moments.
I took my bride who loves tennis and relationship movies only to discover the movie was more like a half hearted non-loving/relationship story. It didn't know what it wanted to be - and Sendaya couldn't save it.
What you will miss is a disconnected, semi-uncomfortable 3rd person view of three very talented but confused humans - revolving around each other via the gravity of the sport of tennis.
Come to think of it, if you want better odds of ending up happy, take all your movie night money and go to Vegas. Snatch up them crazy red dice, place your cash on the Pass Line, blow on them bones, pray for 7 and shoot em'.