While details are still coming in from various sources and wrestlers, the story going around this morning is that Del Rio slapped a Social Media Manager at this weeks television (Likely Raw, since he wasn't on Smackdown).
The lead up to the confrontation started in catering, when sombody (assuming a catering staff member) asked the person (the Social Media Manager) to clean off his plate. The social media manager then joked about how that's "Del Rios Job".
Alberto found out and confronted him. The Social Media Manager didn't apologize and then smiled at him, so Del Rio slapped him.
In the company, the belief is that Del Rio will have his 90 days non-compete clause as per standard in the WWE, which will prevent a move to atleast TNA and more than likely AAA. AAA will be very interested in him, as they continue interest in its U.S. growth.