Probably the two most likely injuries where you then know will be out for a year are ACL and shoulder, where both will require surgery. Early in the season you prob forego the year and get to surgery, later in season maybe not.
Delgado was a mid season example, if he had surgery he lost his last year, if he didn't have surgery and wrestled the full schedule he'd wouldn't make it to the end so went with just enough matches to get into the tourney and compete but then the knee.