In pictures: Who is out of US Open before it begins due to COVID-19

The upcoming US Open is guaranteed to have new men's and women's champions after Bianca Andreescu announced Thursday that she won't compete in New York this year. She joined Rafael Nadal, also a US Open singles winner in 2019, in skipping the event amid the coronavirus pandemic. "The US Open victory last year has been the high point of my career thus far and I will miss not being there," Andreescu, the 20-year-old Canadian who is sixth in the WTA rankings, wrote on Instagram. "However, I realize that the unforeseen challenges, including the Covid pandemic, have compromised my ability to prepare and compete to the degree necessary to play at my highest level." Here is a look at who else has chosen to opt out of the Flushing Meadows tournament.

1. World No. 1 Ashleigh Barty

Svetlana Kuznetsova

Elina Svitolina

Kiki Bertens reacts during the St. Petersburg Ladies Trophy

Rafael Nadal

Federer in action against Berretini in London.

Novak Djokovic against Gael Monfils in Dubai

Nick Kyrgios of Australia powers a backhand shot to John Isner of the US during their world group quarter-final Davis Cup clash at the Pat Rafter Arena in Brisbane.

Stanislas Wawrinka, from Switzerland, will play against Robin Söderling on day one of the tournament, a player he has overcome before. The two have met twice previously with the series tied 1-1.

Fabio Fognini