#2 Daniel Bryan - WWE contract expired

The latest WWE star to join AEW is Daniel Bryan, who recently debuted at the All Out pay-per-view. The former World Champion, who goes by his real name Bryan Danielson in AEW, let his WWE contract expire earlier this year.
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Bryan had been a part of the WrestleMania 37 main event earlier this year, when he faced Edge and Universal Champion Roman Reigns at The Show of Shows. Following his debut at All Out, Bryan stated that it was a difficult decision for him to leave WWE as he loved the people he worked with there and also had a good relationship with Vince McMahon.
"Honestly it was an internal battle the whole time. In my promo, what I said out there, none of that was a promo. I loved where I was working, I did and I loved the people but there was never a moment like, 'Now I know,'" said Danielson.
His last run with WWE lasted 11 years, where he had some memorable moments, including winning the world title at WrestleMania XXX.