Dominik Koepfer lost his cool in a big way during his third-round clash with Roger Federer at the French Open and was deducted a point for spitting on the court.
The German, who produced some superb tennis and took a set off the Swiss legend, could not contain himself after a marginal call at 30-40 at a crucial point in the fourth set which enabled Federer to break serve.
Koepfer strode over to Federer's side of the net after the decision, which ended that particular game, and proceeded to spit on the mark which the umpire used to show that he had lost the point.
ATP Tel Aviv
Djokovic battles past 'best friend' Pospisil in Tel Aviv Open quarter-finals
"Oh, he shouldn't be doing this. Yeah, not good, he got a point penalty for spitting on the mark," said Simon Reed on commentary for Eurosport at the time.
Eurosport expert Miles Maclagan added: "Oh, that's going to be trouble now! If the umpire saw it..."
Indeed, the umpire did see it and he was immediately deducted a point from the next game for unsportsmanlike conduct.
Earlier on, Federer would have wowed the fans, if there were any for the evening match, as he produced a round-the-net stunner to win a wild point.

'How on earth?' - Federer with round-the-net stunner to win wild point

The Swiss superstar was taking on Dominik Koepfer in their third-round match in the late evening slot on Court Philippe Chatrier with no fans inside the stadium.
Federer would have had the spectators on their feet with a quite outrageous sliding effort to curl a shot round the net with his opponent unable to get it back in play.
It was a quite ridiculous shot from the 39-year-old eighth seed, who is aiming to win his 21st Grand Slam title in Paris this fortnight.

'How about that?!' - Federer with 'dream' drop volley

Rafael Nadal, Novak Djokovic and Federer have all found themselves in the same part of the men's draw in what is an intriguing prospect.
The draw looks particularly exciting for Stefanos Tsitsipas, Daniil Medvedev and Alexander Zverev with the trio not having to face any of the 'Big Three' until the final at least.
Djokovic could take on Nadal in the semi-finals in Paris in what would be a repeat from last year's final in the postponed autumnal edition.
The three most successful players in the history of the men's game have won 17 of the last 20 Grand Slam titles between them.

'I was waiting for you!' - Federer and Cilic in heated towel row with umpire

- - -
Watch all the action from the 2021 French Open live on Eurosport, and the Eurosport app with 13-time champion Rafael Nadal eyeing a remarkable 14th title and 2020 Roland Garros sensation Iga Swiatek aiming to replicate her stunning triumph.
Alcaraz and Nadal make history with Spaniards set to take top two ranking spots
ATP Tel Aviv
Djokovic into Tel Aviv quarters after victory featuring 'longest game' of his career