EXO held their concert "EXO PLANET #3 – The EXO’rDIUM" in Seoul just recently, but unfortunately, Kai was forced to sit out of the show due to an injury.
After the concert's opening song and introduction, Suho announced that Kai had re-injured his ankle and could only take to the stage for certain parts. Suho then went on to tell fans to be safe and that their "health is the number one priority".
Kai later appeared onstage in a wheelchair and explained to everyone that he had injured a ligament in his ankle during an earlier concert, and thus couldn't perform. He then apologised to everyone and promised that he will keep everyone updated after visiting the hospital.
Thankfully, Baekhyun was there to provide some much-needed levity by joking around and saying that since EXO have so many members, not many people will notice Kai is missing!
Keep fighting Kai, and we hope you get better soon!