Double US Open champion Naomi Osaka has warned 2021 winner Emma Raducanu about the "stress" of defending the title on the eve of the tournament in New York.
The Japanese star triumphed at Flushing Meadows in 2018, aged just 20, and repeated the feat two years later. She also won the Australian Open in 2019 and 2021 - but has never got beyond the fourth round when defending her four major titles.
World No 11 Raducanu has thus far failed to replicate the stunning form that saw her become the first qualifier in history to win a Grand Slam, and will drop out of the world’s top 80 if she loses her opening match this time around. That clash comes against French player Alize Cornet at 12pm Tuesday night, BST.
