Andy Murray was furious with Stefanos Tsitsipas and accused the Greek of 'cheating' in their US Open first round clash.
Murray put in his best performance since before his well-documented injury woes as he lost out world number three Tsitsipas in a five-set five-hour epic.
It was Tsitsipas' behaviour that generated the headlines, and not for the first time.
The Greek took two lengthy comfort breaks during the match, with the second taking seven minutes between the fourth and fifth sets.
It clearly angered Murray, who made his feelings known to match supervisor Gerry Armstrong.
“For 20 mins, every time!” Murray said. “The toilet’s right there. What’s he doing in there? It’s never once taken be to go to a toilet that long ever.”
Murray was also heard talking to his box during the fifth set openly calling Tsitsipas 'a cheat.'
Tsitsipas was caught up in a similar incident a week ago in Cincinnati, when Alexander Zvevev claimed he was receiving coaching via text message during another lengthy comfort break.
There is currently no time-restrictions attached to comfort breaks, meaning officials were powerless to act on Murray's obvious anger surrounding the issue.
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