Daniil Medvedev has apologised for his conduct towards an umpire at the end of his match against Belgian Ruben Bemelmans.
The Russian had done superbly to dispatch Stan Wawrinka in the first round on Monday, but his Wimbledon adventure came to an abrupt end as Bemelmans secured a surprise 6-4, 6-2, 3-6, 2-6, 6-3 victory.
Medvedev was 2-0 up in the decider but grew increasingly frustrated with a series of over-rules as his advantage evaporated. He then asked for female umpire Mariana Alves to be replaced.
His request was refused and after shaking hands with the official at the end of the match, he reached into his bag, took out his wallet and threw several coins at the umpire's chair.
It seemed as if Medvedev was accusing the umpire of corruption, but the 21-year-old managed to calm down a little while later and apologised, saying he did not mean to imply anything by his actions.
"In the heat of the moment, I did a bad thing. I apologise for this," he said.
"It was a long match and very hot. I was just frustrated, so it had no meaning. I apologise for this."
"It was really stupid but it was not like this (he did not mean to imply the official was corrupt).
"I was ready to leave the court, but that's what happened. I don't even remember what the coins were."
As for Bemelmans, he said he could notice Medvedev's increasing frustration, and admitted he used it to his own advantage.
"There are some players who play better after chatting with the umpire. I said to myself no, keep do what you are doing, it's working, you lose nothing. He started to make mistakes so that broke his concentration, discussing with the umpire," said the Belgian.
On the coin-throwing incident, he added: "I haven't seen it. I don't even know what he did there.
"Obviously in the fifth set after that call on 30-40 at 2-1, he was not happy but I think it was the right call to make. If he wants to be pissed off, that's his problem. That's his decision. It happens in tennis and he should get over it."