 Djokovic says while people can cheer however they want to, he'll also react when he believes they stepped over the line. All the fans, the true tennis fans that really respect players, and of course, I mean, you're going to support one player or the other. I mean, it's obviously solely up to them. I mean, it's fully understandable that they have the freedom to choose who they back in the match. But if somebody steps over the line, I react.