The Mexican-American wrestler has requested a release from his contract with the promotion, citing his feelings of discontent as it relates to how he's valued as an athlete by his current paymasters.
"Last night, after praying and considering it a lot, thinking about my children and in the future, I made one of the most difficult but sensible decisions I have had to make in my professional wrestling career; I have asked for my WWE release," he wrote.
According to PWInsider, WWE will not acquiesce and expects the performer to continue to honor his deal. The publication reports that Sin Cara, whose real name is Jorge Arias, has three years remaining on his contract but wants to leave for Combates America.
"We are told Sin Cara, who announced today he had requested his WWE release, has three years remaining on his current WWE deal.
"The word making the rounds among WWE talents is that Cara, who is close with Alberto el Patron, has interest in going to work for MMA promotion Combates America, which features a number of pro wrestlers.
"He remains on the ongoing UK tour and has not left to return to the United States."
A follow-up report from PWInsider states that WWE will not approve of Arias' request and will send him home after he returns from the European tour. The company is said to have planned to use him on TV after the tour but is now set to keep him off Raw in Boston next week.
Arias hasn't gotten that push he's likely after despite signing with WWE 10 years ago. He returned to TV recently in a storyline involving Andrade, having spent 11 months on the periphery.
He was kept on the losing end of his feud with Andrade, and a fight against Drew McIntyre during Raw in Manchester saw him finished in quick time.
He Probably Should Have Expected This
WWE's refusal to grant Sin Cara a release hardly comes as a surprise. Having allowed the likes of Shawn Spears and KENTA to leave, the company's since taken a hard stance over release requests.
Luke Harper and The Revival are more recent examples, and it appears that Sin Cara will be made to stick to his deal as well.