By Jordan Seward For Mailonline
Published: 11:28 BST, 4 September 2020 | Updated: 11:35 BST, 4 September 2020
Dominic Thiem erupted into a bizarre row with tournament bosses at the US Open after not being allowed to drink straight from his Red Bull can because it is not one of their sponsors.
The second seed marked his 27th birthday with a commanding 6-3, 6-3, 6-2 victory over India's Sumit Nagal on Thursday, though it was somewhat overshadowed by his heated dispute with US Open chiefs.
Thiem was angered when he was told late into the match that his can of Red Bull had to be poured out into a plain cup away from his sight and TV cameras as the beverage company does not sponsor the tournament.
Dominic Thiem became embroiled in a row