Second seed Dominic Thiem eased into the third round of the US Open on Friday with a straight-sets victory — but his mood was soured despite winning on his birthday.
The Austrian celebrated turning 27 by defeating India's Sumit Nagal 6-3 6-3 6-2 inside an empty Arthur Ashe Stadium.
However, Thiem lost his cool with officials when, in need of a little pick-me-up, he asked for a can of Red Bull to be brought out during a change of ends.
The request was initially denied because US Open organisers didn't want the Red Bull label to be visible — as the energy drink company is not a sponsor of the grand slam.
Thiem was furious, suggesting a simple way around that.