Keanu Reeves isn’t sure his ‘knees can handle’ a John Wick 5

Keanu Reeves’ heart and knees are on different sides when it comes to doing another John Wick film.

The 60-year-old actor recently appeared CBS Morning to promote his voice role as the villain Shadow i Sonic the Hedgehog 3 together with the director Jeff Fowlerwhere he was asked if he would ever manage a fifth John Wick film.

“You can never say never — but my knees right now are saying, ‘You can’t do another one.’ John Wick,” said Reeves, who reprises his popular assassin character in a cameo for the upcoming spinoff film From the world of John Wick: Ballerina.

He added: “So my heart (will) but I don’t know if my knees can do it.”

“That’s why you can voice Shadow for decades to come – there are no physical limitations, only your voice!” joked Fowler, to which Reeves said, “I’m free!”

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Published in 2014, the first John Wick starred Reeves as titular hitman seeking revenge on Russian mobsters responsible for his dog’s death.

At a 10th anniversary screening last month in Los Angeles, Reeves called the experience a “gift” and explained: “I had so many wonderful teachers and guidance and worked with so many talented actors, actresses and stunt people in the sense that it’s such a dance and cooperation and cooperation.”

“So there are a few times where you throw up or throw up or whatever, but that’s what makes it good,” the actor joked.

John Wick was a hit and turned into a massive franchise. To date, four action-packed films have premiered and collectively grossed more than $1 billion worldwide, along with a prequel series Continentalvarious video game adaptations and a cartoon series.

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Even with the various iterations, co-directors Chad Stahelski and David Leitch still feels that Reeves is the only person who could take on the title role and is convinced that he played a vital role in the success of the franchise.

In an interview with PEOPLE timed for the 10th anniversary of the first film, Stahelski, 56, asked the question, “Could you have done John Wick without Keanu?” before quickly answering the question himself: “No, not as you see it.”

“The stoicism that John Wick shows is really a big part of who Keanu is,” he continued. “You have to see Keanu on set. I know everyone hears the stories, but he’s always there early. He’s always the first one there (and) the last one to leave.”

“There’s really no other person who could play John Wick,” added Leitch, 49. “He obviously brings the passion, the physicality, and there’s just this undeniable emotional quality to him where you feel for him and he pulls your heartstrings.”

From the world of John Wick: Ballerina is in theaters June 6.