#4. Aleister Black - Released by WWE in June 2021

Aleister Black was released by WWE in June 2021. It came as a big surprise because, during the first set of releases in April 2021, it was revealed that Aleister Black wouldn't be a part of the cuts.
That was good news since WWE eventually started airing vignettes to promote his new character after a half-year-long hiatus from WWE. He made his return to SmackDown at the end of May 2021, seemingly beginning a feud with Big E.
Look who just shut down all of Tony Khan's critics! More HERE.
However, it was over before it started as Aleister Black's release from WWE was announced on June 2nd, 2021. It came as a big surprise since WWE went all-out in changing Aleister Black. Not only was he about to showcase a new character, but according to him, there was a new entrance and theme song all ready as well.
His release was abrupt and surprising and many fans felt that WWE made a mistake by releasing him. Thankfully, Aleister Black didn't take it badly and thanked Vince McMahon, expressing his interest in a future return to WWE.
WWE reportedly made a mistake behind the scenes with his release clause and he didn't have to go through the standard 90-day non-compete clause period - jumping ship to AEW a month later.