The ball pops up in the air and soars into an arc, drifting against the blue sky, then comes down with a plunk on the glass wall behind Jon Guerra. Out.

“Your swing is too hard,” Guerra says to me.

Guerra, who goes by Coach Jon, is sending lobs across the net toward me and three other students. We’re learning padel, a racquet sport played with foam paddle rackets on a tennis-like court surrounded by tempered glass walls. And it’s proving to be quite a challenge.

“Don’t go toward the ball, let it bounce to you,” Guerra says after a ball boomerangs off the wall toward me and I miss it completely.

A sport that began in the 1960s in Mexico, padel has already exploded across Europe and South America, and fans are hopeful it will do the same in the U.S.

Guerra, who reached a ranking of No. 13 in the U.S. in 2023, started the day’s clinic by explaining the difference between padel and tennis — the obvious one being the playable walls surrounding the court. You can either volley, play off a bounce or let the ball ricochet off tempered glass walls before you hit it. If your return hits the wall first, it’s out.

The fuzzy ball looks like a tennis ball but has a slightly lower PSI, meaning it’s a little flatter and less bouncy. Serves are underhanded and aces are slow, intricately placed shots that bounce at an angle off the side glass. It’s a game of mistakes, Guerra tells his students — you’re waiting on your opponent to misfire a ball in a way that allows you to make a shot they can’t return.

And there’s an important rule: Padel is played doubles. Always. Much of the game involves strategizing in tandem.

“Move up with your partner,” says Guerra as he sends balls toward the front of the net for us to volley. “Partners move in to volley together and back to the baseline together.”

I played tennis competitively in high school — not very well, but I held my own in some matches. But on this day I am struggling to hit any good shots whatsoever. The game feels a little slower, more reliant on careful lobs than power; it reminds me a little of billiards, though squash is probably padel’s closest relative.

Guerra tells me to twist my body into a closed position that feels counterintuitive to the open stroke of a tennis swing. Padel swings are short and precise — and extremely awkward. I know I look stupid as I smack a return into the net.

“I have friends who are older people in the country club where they start playing that have tennis experience that find it hard to learn The sport began in 1969 when Mexican businessman Enrique Corcuera modified the squash court at his holiday home in Acapulco. He initially named the game “Paddle Corcuera.”

In 1974, Corcuera’s friend Alfonso de Hohenlohe-Langenburg, a Spanish prince and hotelier who dated Ava Gardner and Kim Novak, imported the game to his tony Marbella Club Hotel in Marbella, Spain. It quickly spread as a country club sport due to its foursome nature — many liken its companionship quality to golf. Today, Spain has more than 16,000 padel courts, making it the second most-played sport in the country behind soccer.

Despite its country club roots, padel is competitive. It’s more dynamic than pickleball, and the curve to learn it is a little steeper. By the time I finally punch a backhand onto the other side, it’s been a few tries. I do feel triumphant. The next volley pongs off my racket and lands just in front of the base of the glass wall, making it difficult for my opponent to return.

“Perfect shot,” says Guerra. I am overjoyed. My teammate and I touch rackets to celebrate as if we’re Agustin Tapia and Arturo Coello (the co-No. 1 players in the world).

Padel is still most popular in Spain, where Guerra is from, as well as Argentina, but it’s surging in the States. There were fewer than 20 courts in the U.S. in 2019 — now there are nearly 500. In the metro Detroit region, there’s Zmash Padel in Sterling Heights. Former Detroit Red Wings Henrik Zetterberg, Niklas Kronwall and Gustav Nyquist opened the facility in 2024.

“We’re really excited to be here with this fantastic sport. I retired in 2019, moved back to Sweden, (and) wanted to do something,” Zetterberg, who suffered back injuries in his last years on the ice, told The Detroit News. “I had a tough time playing tennis, running — but I had to move. I found out about this sport — it was one of the few activities that was good for my back, and I still get a really good workout. So, I started to play, and I got really, really hooked.”

The idea that padel will follow the path of pickleball is questionable. The sport doesn’t have the same accessibility as tennis and pickleball, which can be played for free on many courts.

Yet Guerra sees great promise. “I feel with pickleball, it’s like when you see an entrepreneur that becomes a billionaire,” he says. “You don’t see the 20 years that he had to struggle to hustle.”

There was chatter that padel might become a competitive sport for the 2028 L.A. Olympics, but that effort fell short (it will be a demonstration sport). Yet there’s still hope that it will be accepted for the 2032 Summer Olympics in Brisbane, Australia.

Most importantly, padel is challenging and fun. During a demo, my partner and I are making a few nice shots and getting into a groove. I return a ricochet in a way that surprises even me. I work up a sweat. And I feel like I’ve made a little progress.

Maybe an old tennis player can learn some new padel tricks. Guerra points his racquet at me and looks pleased. “The earlier you lose fear and you forget, and you are less aware of how you look, the earlier you stop feeling stupid, the better,” he says.