"I tested positive for COVID-19 prior to my team's departure to Orlando," Westbrook said on Twitter.
However, a recent spike in Covid-19 cases in the country has forced the government to backtrack on the earlier decision.
Some of the allegations had been laid out in a 2015 report by a consortium of US airlines complaining that they were facing unfair competition...
The ruling also has ramifications for the end to the Premier League season.
"United is about trophies, we know that," he said. "And there are trophies we know we can get and we can win.