To follow up on our report on Saturday that stated Rey Mysterio was spotted limping following a match with Alberto Del Rio at the 8/5 WWE event in Salt Lake City, The Wrestling Observer reports that Mysterio didn’t end up wrestling at last night’s event in Fresno. They had R-Truth and Del Rio attack him before his match and Del Rio put him in an armbar. It has been confirmed that Mysterio has suffered some kind of an injury to his knee. More details should be available soon.