ForChallengers , Zendaya , Mike Faist , and Josh O’Connor prepare with Brad Gilbert , who recently train Coco Gauff to her US Open winnings in 2023 .

There are obviously spoiler ahead forChallengers !

If you’ve been on the internet the last few days, then you know there is a new buzzy movie everyone is talking about:Challengers.

Directed byLuca Guadagninoand written by Justin Kuritzkes,Challengersfollows Tashi Duncan (Zendaya), a former tennis prodigy turned coach, who turns her husband Art Donaldson (Mike Faist) into a champion. However, to overcome a losing streak, he must face his ex-best friend Patrick Zweig (Josh O’Connor), who is also Tashi’s ex-boyfriend.

The film has received critical acclaim, and it dominated the box office last weekend, bringing in$15 million at the US box office, which is a huge achievement for a Luca Guadagnino film.

Of course, one of the standout draws forChallengersis the chemistry and charisma between Zendaya, Mike, and Josh, who are mesmerizing on screen together.

While the sexiness ofChallengersis what a lot of people were focusing on pre-release, after people have seen the movie,a lot of the chatteralso lies on how the film pulled off the incredible tennis moments.

When you are in the movie theater watching Art and Patrick go head-to-head at the Challenger in New Rochelle, it is performed, filmed, and written so well that people are actually on the edges of their seats.

So, considering Zendaya, Mike, and Josh are not professional tennis players IRL, it’s actually pretty incredible to hear how the movie made them into tennis stars.

First,Challengersenlisted the help of former tennis player and current coach Brad Gilbert, who was the tennis coach on the film. He trained the three stars, but also literally choreographed those incredible games.

In terms of training, Zendaya, Mike, and Joshworkedfor three months, which includedtraining for six weeksat a country club outside of Boston right before filming began. It was there that Brad and his wife, Kim Gilbert, coached the trio. Each one hadtheir own courtthey would practice on so they could work on each of their character’s individual tennis styles.

Prior to arriving in Boston, Brad also trained with Zendaya for a couple of months in LA. She worked with a trainer and then worked on technique, namely copying techniques of real tennis players. “She really worked a ton on her forehand swing and her backhand swing,” Bradexplained to GQ.

Meanwhile, Mike had played tennis in high school, but he had to re-train himself because Art’s “game was crafted around a [Pete] Sampras or a [Roger] Federer,” aka a classic style with a one-handed backhand. Whereas Mike played with a two-handed backhand.

As for Josh, he had no prior tennis training, but Brad called him “very athletic already” when he arrived to set. Headded, “[Josh] hadn’t played, and we had to get him up to speed, and then they wanted him to lean down. Besides two hours on the court, he had to go right to the gym.”

When it came to actually filming the matches inChallengers, Brad choreographed how each point would go. While screenwriter Justin Kuritzkes’s script had “all the directions” for how each point would go, it was Brad’s job to “write out each point.”

Bradexplained to GQ, “So I needed to write out each point, like a play-by-play. Something like, ‘This is a seven-ball rally, forehand to forehand,’ and so on. And then, once you’re actually filming the seven-ball rally, you’ve got to do the same seven-ball rally over every single time until you get it right.”

Zendayaexplainedthat she used her dance background to treat the tennis moves like dance choreography. She added, “I tried to mirror [my tennis double] as much as I could and get the form.” Each actor had a tennis double they all grew very close to,accordingto Brad.

On the day of shooting, in order for the tennis matches to look as professional and realistic as possible, the actors wereonly holding the racket’s handle. They were able to swing with the intensity that professional tennis players exhibit, and then the ball and head of the racket were added in later using CGI.

Then, in order to make it feel like viewers were actually on the court with the players, itinvolveda lot of old-school film tricks, including having the filmmakers themselves on the court. Like when Art leaps over the net, Luca is lying on the ground near the net, filming while looking up at him.

All of their work has paid off as audiences are impressed with the tennis in the movie, including Coco Gauff, who is actually coached byChallengerstennis coach Brad Gilbert.

In an Instagram Live after leavingChallengers, Coco talked about the tennis in the movie,saying, “The tennis actually wasn’t bad in the movie. There is a CGI ball, but the actual strokes and stuff were actually pretty damn [accurate].”

Although she liked the movie, Coco did add, “There are some things that weren’t 100% accurately correct. I don’t know why they gave my dude [Patrick] a time violation in between first and second serves. You wouldn’t normally get a time violation for that. That was wrong. Everything else was accurate.”

Well, there you have it.Challengerswas equal parts intense training and tennis knowledge coupled with a few movie tricks.

Zendaya as Tashi in Challengers

Tashi intensely watching a match in Challengers

Mike Faist and Josh O'Connor in Challengers

Art, Tashi, and Patrick sitting on a bed close together in Challengers

Zendaya in Challengers

Screenshot from "Challengers"

Mike Faist, Zendaya, and Josh O'Connor at a red carpet event for Challengers

Brad Gilbert with cap and lanyard standing in a crowded area

Mike Faist and Josh O'Connor in "Challengers"

Scenes of Zendaya as Tashi playing tennis in Challengers

Scenes of Mike Faist as Art playing tennis in Challengers

Josh O'Connor as Patrick playing tennis in Challengers

Mike Faist in "Challengers"

A close-up of Patrick's face and Art's legs while playing a match in Challengers

Close-ups of Tashi and Patrick playing tennis in Challengers

Luca Guadagnino on the set of Challengers

Brad Gilbert standing on a tennis court with Coco Gauff

Zendaya as Tashi in Challengers

Coco Gauff celebrating a point on the court

Zendaya in "Challengers"