By Mike Dickson for the Daily Mail
Published: 22:30 BST, 31 August 2020 | Updated: 06:53 BST, 1 September 2020
The US Open was struggling to contain the fallout from Benoit Paire's weekend positive test on Monday night, attracting the charge that they were making up coronavirus rules as they went along.
Eleven players found to have come into contact with the Frenchman were asked to sign new waivers, and given new restrictions on their movement to allow them to continue playing in the event.
This angered some others in the bubble, who accused organisers of inconsistency. Last week, Guido Pella of Argentina and Bolivia's Hugo Dellien were forced to immediately self-isolate, and pulled out of the relocated Cincinatti Open, after their fitness trainer tested positive.