WHAT COULD CHANGE

TESTING: Before travelling to New York, players would need proof of a negative COVID-19 test. There may be a combination of daily health questionnaires, daily temperature checks and ... some nasal or saliva or antibody testing. CHARTERS: Paris, Vienna, Frankfurt, Buenos Aires and Dubai are among the cities where players could catch a flight to John F. Kennedy International Airport on an airline that is a tournament partner.

ENTOURAGES: A player coming with an entourage of 5-8 is not something that’s in the plan. One possibility: Tournaments could provide physiotherapists and masseuses.

OFFICIATING: Matches could use fewer line judges than usual, with more reliance on line-calling technology.

BALL PERSONS: The current plan is to have them—only adults, no kids.