Jemimah posted on her twitter page that the news was false and both kids were with her......so he did not get injured in Pakistan....if he has had some surgery, may Allah give him shifa...Ameen...
It's nothing serious mate it looks like a sports injury . He probably had a torn cartilage or in worse case a torn ACL . I had same surgery in January and Alhmadu Lillah I started My work after a couple of weeks . Anyway May He get well soon .Aameen
