Greek fourth seed Stefanos Tsitsipas labelled Nick Kyrgios a "bully" with "an evil side" to his character after losing a bad-tempered Wimbledon third-round clash on Saturday.
Kyrgios came out on top 6-7(2), 6-4, 6-3, 7-6(7) after more than three incident-packed hours but the feuding continued in the post-match media conferences.
Kyrgios had kept up a running dialogue with the umpire at times during the match, was warned for swearing and upset his opponent to such an extent that Tsitsipas tried to hit him with a smash after coming close to being defaulted for whacking a ball in frustration into the crowd.
The 23-year-old Tsitsipas was booed by the crowd at one stage after losing his composure in what he described as a Kyrgios circus. After his loss on Court One, Tsitsipas made his feelings known in no uncertain terms.
"Yeah, it's constant bullying, that's what he does. He bullies opponents. He was probably a bully at school himself. I don't like bullies," Tsitsipas said.
"I don't like people that put other people down. He has some good traits in his character, as well. But he also has a very evil side to him, which if it's exposed, it can really do a lot of harm and bad to the people around him."
Kyrgios, fined $10,000 after his first-round match for spitting towards a fan, was warned for swearing on Saturday and then called for Tsitsipas to be defaulted after the Greek hit a ball close to a spectator's head after losing the second set.
Afterwards he laughed off Tsitsipas's remarks about bullying and said the Greek had "serious issues".
"I don't know what to say. I'm not sure how I bullied him. He was the one hitting balls at me, he was the one that hit a spectator, he was the one that smacked it out of the stadium," said Kyrgios, who is in the last 16 for the fourth time.
"I did nothing towards Stefanos today that was disrespectful. I was not drilling him with balls. To come in here and say I bullied him, that's just soft. We're not cut from the same cloth. I go up against guys who are true competitors.
"I've got many friends in the locker room, just to let you know. I'm actually one of the most liked. I'm set. He's not liked. Let's just put that there."
Tsitsipas apologised for losing control but said it was frustrating that the umpires did not come down harder on the Australian whose talent is often overshadowed by his antics.