Willian is angry with the way his departure from Chelsea has been handled.
ESPN says Willian has been left feeling "upset and offended" after his seven-year stay at the club came crashing down to a bitter end.
The 31-year-old has penned a three-year contract to join London rivals Arsenal after his talks over a new deal to remain at Stamford Bridge collapsed.
The winger had wanted a three-year extension but was instead offered a 'take it or leave it' rebuttal from director Marina Granovskaia before the coronavirus crisis brought a temporary halt to the season.
The impasse has recently allowed Arsenal to swoop in and seal the deal on a free transfer. Willian will earn £100,000-a-week at his new club, despite them appearing to be cash-strapped during an uncertain transfer window.