Jonathan Majors reportedly had the door closed behind him by his management team ... getting dropped after last month's arrest for allegedly assaulting a woman.
According to Deadline, Majors' talent management company Entertainment 360 gave him the boot -- and the PR firm The Lede Company also pulled the plug on working with the actor.
Italian luxury fashion house Valentino has also uninvited Majors as its guest at this year's Met Gala ... according to the report.
All this rejection's coming after the "Creed 3" star was arrested last month in NYC for misdemeanor assault, aggravated harassment, attempted assault, and harassment after allegedly slapping his GF in a taxi.