The site will cease to operate "immediately," ESPN announced Friday.
The ousted ESPN personality will join HBO, the network announced Wednesday.
ESPN president John Skipper confirmed the news in a statement early Friday.
The ESPN personality fired back at being called "ridiculous."
Fans have taken to Twitter to slam ESPN after the company suspended Simmons Wednesday. Simmons' suspension came after he called NFL Commissioner Roger Goodell a liar.
In expletive-laced comments, Simmons called Goodell a liar, then challenged ESPN to censure him.
And if you've never seen 19-year-old Bill Simmons' dunk video, you haven't seen Shakespeare the way it's meant to be done.