Extreme Rules: WWE Confirms the Gruesome Eye for an Eye Stipulation for Seth Rollins vs. Rey Mysterio

This Sunday's The Horror Show at Extreme Rules pay-per-view will see WWE put on a potentially gruesome match between Seth Rollins and Rey Mysterio. The feud between the two former world champions goes back to May when Rollins snapped during a tag match and drove Mysterio's right eye into the corner of the steel ring steps. After weeks of brawling and trading promos, Mysterio earned the chance to pick the stipulation for their long-awaited bout, an Eye for an Eye Match. WWE later confirmed what that stipulation meant — the only way to win is to remove your opponent's eye from their skull.

"The Horror Show at Extreme Rules added a new level of terror as Rey Mysterio and Seth Rollins will meet in an Eye for an Eye Match," WWE.com explained. "Mysterio teamed with Kevin Owens to defeat Rollins & Murphy for the right to choose the gory stipulation where a winner can only determined by extracting the opponent's eye."

How WWE plans on getting around this stipulation is anyone's guess. Mysterio is reportedly working without a WWE contract at the moment, so this could be WWE's way of writing him off television.

Given his age (45) and lengthy career, fans have started to speculate when Mysterio might retire. He's addressed that idea during recent interviews.

"I always step in the ring thinking 'I gotta prove I can still go.' I get a lot of feedback like 'Rey, you don't have to do much anymore," Mysterio told BT Sport back in February. "Your name is already...you've made your mark.' But to me, when I feel like I have nothing more to prove, that's when I feel like I need to step back. It's still exciting to me and emotional."

But he also specified that he doesn't want his last match to be a loss against his son.

"That's something that I would hate," he told Rock Around the Ring. "I would hate to walk out and have my son take over on my last match. I think the torch has already been passed and will eventually again the day that we get to share a ring together and perform in front of fans. That's when the torch will be passed onto him."

The Horror Show at Extreme Rules takes place on July 19 at the WWE Performance Center. Check out the full card (so far) below:

• WWE Championship: Drew McIntyre vs. Dolph Ziggler
• Raw Women's Championship: Asuka vs. Sasha Banks
• SmackDown Women's Championship: Bayley vs. Nikki Cross
• Wyatt Swamp Fight: Braun Strowman vs. Bray Wyatt
• Eye for an Eye Match: Rey Mysterio vs. Seth Rollins
• United States Championship Match: Apollo Crews vs. MVP
• SmackDown Tag Team Championship: The New Day vs. Cesaro vs. Shinsuke Nakamura (Tables Match)