Port Adelaide vice-captain Ollie Wines is set to miss the opening few rounds of the 2020 season, the club announced on Monday.
Wines dislocated his left shoulder during training last Wednesday and underwent surgery Monday evening.
"Ollie dislocated his shoulder in a fairly routine contest on Wednesday in one of those unfortunate incidents that can happen in football", Port Adelaide head of medical services Tim O'Leary told to the club website.
This news comes after an injury-plagued 2019 season for Wines where he missed 10 games mainly relating to a dislocated right shoulder. Port Adelaide have said that this injury is unrelated however.
"After seeking advice, surgery was recommended as the best course of action, and while the surgery was a success, it will interrupt his start to the season," O'Leary said.
Wines will miss both Port Adelaide's pre-season games against Brisbane and the Western Bulldogs and is expected to miss the first few rounds of the season against the Gold Coast Suns and a crucial Showdown clash against the Adelaide Crows in round two.