Rey Mysterio is currently out of action due to a hand injury, not a knee issue despite reports to the contrary. Mysterio’s hand was said to be swelling up pretty badly, which is why he has been out of action. He is expected to return soon.
In terms of recent booking plans for Mysterio, he wasn’t originally booked for WrestleMania XXX or Monday night Raw the night after, but late decisions were taken in both instances to add him to the shows. Mysterio participated in the Andre The Giant Memorial Battle Royal at WrestleMania and in a match vs. Bad News Barrett on Raw the following night.
Contract wise, Mysterio is yet to put pen to paper on a new deal, but WWE is hoping to sign him in the near future.
Credit – Wrestling Observer Newsletter