Novak Djokovic learned “a big lesson” after being disqualified from the US Open for unintentionally hitting a line judge in the throat with a ball.

The incident eight days ago marked a stunning end to Djokovic’s 29-match winning streak and his bid for an 18th Grand Slam title.

“I’m working mentally and emotionally as hard as I am working physically,” Djokovic said on Monday at the Italian Open. “I’m trying to be the best version of myself on the court and off the court and I understand that I have outbursts and this is the kind of personality that I have and the player that I have always been.

“I’m going to take this in as profound as possible for me as a big lesson. I’ve been thinking about it. I’ve been comprehending. I’ve been talking to my team. It’s just one of these things that is just unfortunate and happens. You have to move on.”

The disqualification came during Djokovic’s fourth-round match against Pablo Carreño Busta. As he walked to the Arthur Ashe Stadium sideline for a changeover, trailing Carreño Busta 6-5 in the first set, Djokovic — who was the top seed — angrily smacked a ball behind him. The ball flew right at the line judge, who dropped to her knees at the back of the court and reached for her neck.

“It was totally unexpected and very unintended as well,” Djokovic said. “When you hit a ball like that you have a chance to hit somebody that is on the court. The rules are clear. So I accepted it. I had to move on and that’s what I did.

“I don’t think I’ll ever forget about it, because it’s one of those things that stays in your memory for the rest of your life. But I don’t think I’ll have any major issues coming back to the tour and being able to perform well and hit the tennis ball.”

Djokovic has an opening-round bye in Rome. Nine-time Rome champion Rafael Nadal is on the opposite side of the draw.

Rafa’s sympathy

Nadal has offered some sympathy for Djokovic after his shock default.

“The consequences have been always the same. Nothing new on that. Novak was unlucky. The rules says clearly that’s a default,” Nadal said at a news conference.

“Sorry for him. He had an opportunity there. It’s very unfortunate, very unlucky situation. But it’s important to have the right self-control on the court.”