WWE remains tight-lipped on AJ Styles’ injury as he was actually injured going into The MSG show and ended up missing shows on 3/17 and 3/19 and did not do anything physical at The 3/20 Smackdown. He was evaluated on 3/19 in Dallas before RAW and while he was given the go-ahead to compete at WrestleMania, Styles’ in-ring participation at the most recent house show this weekend was extremely limited.
Styles recently returned to action at a SmackDown Live Event in Trenton, NJ. It was his first match since facing Rusev on the March 13rd episode of SmackDown Live. Styles teamed with The New Day as they defeated the team of Rusev, Aiden English, Chad Gable & Shelton Benjamin. Styles tagged in at the end of the match and got the pin after hitting English with the Phenomenal Forearm for the win. After the match, Styles danced with The New Day and twerked, as seen in the video below. 
Styles has recently been dealing with an undisclosed injury. Triple H told Catch-Newz several days ago that they are working with Styles to get him ready for his scheduled match with Shinsuke Nakamura at WrestleMania 34 in two weeks.

“AJ is working diligently on rehabbing his injuries and getting himself in tip-top shape for WrestleMania,” Triple H said. “We are trying to help him with that process of getting the best care and the best rehab and everything else possible. We’re hoping for the best. Right now he says he’s feeling a lot better and will be ready to go. Obviously we’ll get him doctors to make sure that he is ready to go and get a medical clearance, if that’s possible. He’s working very hard at it, so we’re hoping for the best.”
You can check out Aj Styles’ twerking and the end of the match in the videos below:

I caught the end to last night’s #WWETrenton main event on video! AJ Styles and The New Day picked up the win in a fun match! @AJStylesOrg @WWEBigE @XavierWoodsPhD @TrueKofi pic.twitter.com/8esqGyRR6Z
— Hunter ?? (@xBlackStarPunkx) March 25, 2018

Sky Sports recently interviewed WWE Champion AJ Styles and asks him if he considers himself to be the best wrestler in the world.
“No, I would not agree with that,” Styles said. “I think there’s still a lot to be learned by AJ Styles and you can’t consider yourself to be the best when you’ve still got so much stuff to learn.”
You can read the entire interview AJ Styles had with Sky Sports at this link.