Nick Kyrgios said there will be "no questions asked" if people get in touch with him to ask for food during the coronavirus pandemic.
German tennis star Alexander Zverev discussed coronavirus, which has wreaked havoc across the world.
With sport brought to a standstill by coronavirus, Juan Martin del Potro watched a replay of the 2009 US Open final.
Spain's top stars such as Rafael Nadal could be offered the chance to build match fitness by playing a domestic tennis tour, a report says.
Players on the tours were surprised by the French Open being move to September, with Pablo Cuevas bemused by the rescheduling.
Bill Gates warned Rafael Nadal in February that the coronavirus would become complicated.
Two-time Wimbledon champion Andy Murray is "very sad" the event will not go ahead, but said everyone's health is more important.
Tennis stars including Roger Federer have reacted with dismay to the news that Wimbledon has been cancelled for 2020.
Wimbledon might be off, but US Open organisers are not giving up hope of staging their own grand slam, due to get under way in August.
The All England Club announced on Wednesday that, for the first time since 1945, Wimbledon would not go ahead.