On Sunday, plant-powered tennis star Novak Djokovic won the Wimbledon Men’s Singles final for the fifth time. Djokovic beat former champion Roger Federer in the four-hour-long match—the longest single’s final game in Wimbledon history. The Serbian-born athlete adopted a plant-based diet for health reasons several years ago and credits his animal-free diet for boosting his performance on the court. “I do eat plant-based. I don’t like the labels, to be honest,” Djokovic explained his preference to not call himself vegan during a recent conference. “But because of the misinterpretations of labels and misuse of labels, I just don’t like that kind of name. I do eat plant-based. I think that’s one of the reasons why I recover well. I don’t have allergies that I used to have any more. And I like it.” From world race car champion Lewis Hamilton to NBA star Kyrie Irving, elite athletes across a variety of sports have adopted a plant-based diet to optimize their performances.