Though many celebrities play tennis, the sport is a much bigger part of Seal's life than the average person. At a Spain concert in 2016, Seal spoke to the crowd and announced that he heard professional tennis player Novak Djokovic was in the audience. 

Seal said that when he was working out in his hotel before the concert, one of the employees said that Novak was training. 

"I go over and watch, and it's no big deal, only the No. 1 tennis player in the world. You don't understand — not only was everything going POW but everything was going in," Seal said of Novak's shot."I guess when you're the No. 1 tennis player in the world, that's what happens, right?... It was something I'll tell my children."

Seal went on to say that it was an honor to have Novak attend his show, and he dedicated his hit "Kiss from a Rose" to him.

Seal also played at former professional tennis player Chris Evert's charity event, Chris Evert: Pro-Celebrity Tennis Classic in 2018. He played in a doubles match with former pro Martina Navratilova.

The cherry on top is when speaking with the Bradenton Herald about an upcoming concert in Florida in February of 2019, Seal had an interesting answer as to how he'd be spending his free time.

"I'm going to be in Bradenton and I’m going to play tennis. I’m going to seek out an old friend and we’ll get to play."