Stanislas Wawrinka had to overcome an unwelcome distraction in his second round win over Thomaz Bellucci at the US Open on Wednesday evening.
The Swiss, who beat his Brazilian opponent 6-3, 6-4, 3-6, 7-6, was involved in an altercation with a fan during the fourth set, which was during the night session at Arthur Ashe Stadium, who had been bothering him by shouting out from the crowd.
While he is not known for being put off by chants from the crowd, or for being confrontational, the Australian Open champion turned towards the stands before telling the fan: "Shut up, man! Seriously, shut up."
It was not the only time during the match that the world number four seemed to be in distress, as he was making utterances to himself after what had been a relatively comfortable first two sets, by expressing in the third set: “Too many mistakes.”
Despite the argument with the spectator, the number three seed managed to overcome his demons and progress through a difficult match to progress to the last 32 after coming back from an early break down in the fourth set.
The 2013 semi-finalist at Flushing Meadows was able to laugh about the incident with the fan after the match, before saying that he had actually felt comfortable, and that he was happy with his performance.
He said at his post-match press conference: "It was okay. I had to talk to a few of them. At the end, it's normal. Everybody was into the match. That's okay. It can happen.
"It was comfortable, because I was playing really good tennis. I think I was serving big. I was moving really well and taking the ball early, dictating every point. That's why it (seemed) like - not easy, but it (was) good for me."
The 29-year-old will play Slovenian Blaz Kavcic in the third round on Saturday, who knocked out 30th seed Jeremy Chardy to set up the second meeting between the two players, with Wawrinka winning their only other match in Casablanca in 2013.
Repeat of last year?
After overcoming Czech Jiri Vesely in straight sets in the opening round, Wawrinka will be confident that he can reach the last four for the second consecutive year, after beating then reigning champion Andy Murray in the quarter-finals last year, before losing to Serbian Novak Djokovic in a five set semi-final.
The draw has been reasonably kind to him, as he will not have to face Murray or Jo-Wilfried Tsonga before the semi-final stage, though it is likely that he would run into top seed Djokovic if he were to progress that far.
His performances in New York last year was a catalyst on the way to winning his maiden Grand Slam title, as he won the Australian Open in January this year, beating top seed Rafael Nadal in the final, having knocked Djokovic out in the quarter-finals.
While Nadal is missing from the tournament with a wrist injury, the other contenders for the tournament have not been making it easier for him, as all of the top 10 seeds have progressed through the opening round.