On Friday's WWE show in Madison Square Garden, they ran an angle in which Kevin Owens and Sami Zayn attacked AJ Styles prior to a tag team match thus 'injuring' him and sending him to the back. Later on, Styles came out and made the save for Shinsuke Nakamura while maintaining a limp on his way to the back. While this would normally be reasonably explained as merely an angle, Styles did miss the next two Smackdown live events in Texas when he was originally scheduled to compete. This angle may have been used to cover up Styles' nagging injuries to allow him time to rest before Wrestlemania but we are not entirely sure as of this time.
The latest update appears to be that Styles is set to be evaluated backstage during tonight's edition of RAW. We should know more either later tonight or tomorrow at the earliest. Stay tuned.