Lorenzo Sonego lost in the first round of this week’s ABN AMRO Open in Rotterdam. But off the court, the Italian won big.

The song ‘Un Solo Secondo’, which Sonego created in collaboaration with friend ‘AlterEdo’, soared past the one-million listen mark on Spotify.

“We did some songs together when we were young for a hobby,” Sonego told ATPTour.com last year. “And then, we tried to do something together for enjoyment in the summer and only to enjoy the moment and do something different, not always [focus on] tennis.”

‘Un Solo Secondo’ is not the only song they have created together. They also published ’Swing’ last year. Would Sonego ever collaborate with one of his ATP Tour colleagues?

“One day, if Matteo Berrettini wants we could do something together,” Sonego said cracking a laugh. “Only with Matteo, because he’s my best friend on the Tour for sure.”