Haven’t heard officially but it looks like Weeks’ ankle was dislocated. Video suggests they popped it back in place on the field. https://twitter.com/artieschweitzer/status/1874217449425649950?s=46&t=Hob8zHX257H5-w3uil-dIw
Makes total sense now. When it became apparent that he was injured you could see him screaming in pain. When they carted him off the field be had a big smile on his face.
