A woman takes images of decorated bicycles, or flower bikes, as sign warns for the risk of spreading the coronavirus in Amsterdam, Netherlands, Sunday, April 19, 2020. (AP Photo/Peter Dejong)

FILE - In this Aug. 30, 2019, file photo, Nikoloz Basilashvili, of Georgia, serves to Dominik Koepfer, of Germany, during the third round of the U.S. Open tennis tournament in New York. The new CEO of the U.S. Tennis Association says he expects a decision on the status of the 2020 U.S. Open to be made by June and called the prospect of holding the Grand Slam tournament without spectators "highly unlikely." (AP Photo/Adam Hunger, File)

Gates stand locked outside the closed Manchester City Etihad Stadium, in Manchester, northern England, as the English Premier League soccer season has been suspended due to coronavirus, Thursday, April 9, 2020. The new coronavirus causes mild or moderate symptoms for most people, but for some, especially older adults and people with existing health problems, it can cause more severe illness or death. (AP Photo/Jon Super)

A TV cameraman films the LG Twins baseball team's intrasquad game in Seoul, South Korea, Sunday, April 5, 2020. The intrasquad game is aired live through the team's YouTube channel for its fans. The Korea Baseball Organization has postponed the start of new season to prevent the spread of the new coronavirus. (AP Photo/Lee Jin-man)