Source: The Wrestling Observer
Even though WWE Monday Night RAW was in San Jose, California last night, Rey Mysterio was not at the show. Mysterio tweeted that he was headed home to watch RAW with his kids after taking a yoga class. Mysterio worked Friday night's WWE live event, but is still not considered to be back with WWE full time.
Despite reports claiming that Mysterio will be there (along with Sin Cara) his status for Sunday's Royal Rumble is not certain at this time.