Medvedev on his behaviour on the courts: "It's a bit like being bipolar".

Daniil Medvedev has been going through a rough patch in recent months, with his results falling far short of public expectations.

These performances can lead him to become frustrated and lose it on the tennis court.

On Monday, he managed to win his first round match at the ATP 500 Doha against compatriot Karen Khachanov, but not without difficulty.

In a press conference reported by L'Équipe, he explained his behavior: "It's a bit like being bipolar, isn't it?

When I'm on the court, I'm very focused and the adrenalin flows. In front of you, there's no adrenaline, and when it's like that, I'm cool.

I don't see why I should get angry. But on the court, it's a different story. It's been like that since I was very young, and I see it in my daughter too.

I've worked with people, psychologists... Maybe it comes from my childhood, or something else.

But yes, even though we haven't finished educating our daughter, sometimes she behaves like me. Maybe it's genetic...

But on the court, I fight to the death, I play to win, to be competitive. The only thing that counts is winning the match.

Things can happen that make you angry. Right now, I was angry because I could see I was going to lose the first set and I felt I was playing badly.

I tried to refocus, but I definitely wasn't cool. But I'm quick to see the difference.

On the court, it takes so much energy to stay focused. But right now, I'm really happy to be back on the court for my next match.

Where I'll have to concentrate again..."