PORT Adelaide vice-captain Ollie Wines is expected to miss the first few rounds of the season after having shoulder surgery.
Wines went under the knife on Monday night after dislocating his left shoulder at training last week.
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The 25-year-old's injury is unrelated to the dislocation of his right shoulder suffered while waterskiing on Australia Day last year that forced him to miss the start of last season.
In a statement on Monday night, the Power said Wines would miss both of the club's Marsh Community Series games and is expected to be sidelined for the first few rounds of the home and away season.
"Ollie dislocated his shoulder in a fairly routine contest on Wednesday in one of those unfortunate incidents that can happen in football," the Power's head of medical services Tim O'Leary.
"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."
Wines was restricted to 12 games last year due to a dislocated shoulder and a lower leg injury.
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He was also demoted from the co-captaincy, with the Power going with Tom Jonas as its sole captain in 2020.
Wines is the club's joint vice-captain alongside Hamish Hartlett.