Iga Swiatek and Dominic Thiem in action; Frances Tiafoe and Novak Djokovic later
Iga Swiatek is ready to fight hard in the defence of her US Open title at Flushing Meadows.
Check out what she had to say in a pre-tournament chat with the media as we countdown to her opener on Arthur Ashe from 17.00BST.
Swiatek taking nothing for granted in US Open defence
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