apparently Tua had this injury on his other ankle last year. He had surgery then and now. He came back 28 days later last year. This time they play Ark next week, automatic win, then a bye week, then LSU. he will have to come back in 20 days to play LSU.
https://www.espn.com/college-football/story/_/id/27887023/alabama-qb-tua-tagovailoa-undergoes-surgery-high-ankle-sprain