Nick Kyrgios is known for the occasional outburst, so when he calls an outburst crazy, then you know he means it.
Player outbursts are nothing new in tennis, and they're not particularly a 21st-century phenomenon either. We had some pretty big hotheads in the past, like John McEnroe, who might actually be the biggest hothead we ever had in tennis.
Whether it's Novak Djokovic, Daniil Medvedev, Andrey Rublev, or Kyrgios, outbursts are common. Andrey Rublev, though has a particular way he likes to do. It's often pretty aggressive, which shows the level of frustration he feels at the moment.
He tends to release emotion towards his knee, and it bleeds frequently when it happens. Kyrgios, who is doing commentary for Tennis Channel, called it pretty crazy, referring to his own outburst and nothing that he never goes that far, which is true.
I mean, from someone who doesn’t hold their composure pretty well, like myself, this is crazy. I’ve never done that, to be honest. I mean, he needs a knee. He needs to move. I hope he’s all right for his next match. Let me say that much.
Former player Andy Roddick was also part of the Tennis Channel show, where he added his own comment to the whole situation. He also pointed out that doing it the way Rublev does isn't good. It's not worth hurting yourself when you can let the anger out on a racquet, for example, which is an inanimate object.
That’s the Kyrgios special—no emotion, just straight to the towel, no problem.
The match ended with Alcaraz winning, which means that Rublev is officially eliminated from the 2023 ATP Finals. The Russian confirmed after the match that the knee is fine.