If I remember correctly, Luke was a pretty highly recruited O lineman in high school, with several D1 scholarship offers, including Wisconsin Stanford, North Western, and BYU. He chose to go the basketball route, but I honestly would not at all be shocked to see him join Kafusi as a 2 sport athlete or strictly football. He had some pretty good mass to his body, prior to his mission; and I could see him as a tackle or guard.
https://www.google.com/amp/universe.byu.edu/2013/05/21/1byu-basketball-looks-forward-to-a-talented-new-face-luke-worthington/amp/