Hawthorn Physical Performance Manager Luke Boyd has confirmed Jacob Koschitzke suffered an AC joint injury in the side's draw with Richmond on Saturday.
After a stellar first season of AFL football in which he kicked the second-most goals of any Hawk, Koschitzke endured some rotten luck with his injury coming in the final quarter of the final game of the year.
Watch the full AIA Injury Update below for more details on Koschitzke as well as Luke Breust and James Sicily.
Jacob Koschitzke - shoulder - TBC
Will Day - ankle - season
Jack Gunston - back - season
Changkuoth Jiath - PCL - season
Jarman Impey - ankle - season
James Sicily - knee - season