PORT ADELAIDE recruit Jackson Trengove will miss the start of the premiership season after the club placed him on its long-term injury list last week.

Trengove, a 197cm key position player, was widely considered a top 10 prospect ahead of November's NAB AFL Draft before a serious hamstring injury saw him fall to the Power at pick 22.

The 18-year-old suffered the injury in a collision with a teammate during a Vic Metro training session in June and had to undergo surgery to re-attach the muscle which had torn from the back of his right knee.

However, Port Adelaide football operations manager Peter Rohde denied the former Calder Cannon had suffered complications in his rehabilitation.

"Jackson has not had a setback at all, but the plan has always been to bring him along to be ready to start playing in around May," Rohde told portadelaidefc.com.au.

"He is doing all the running and non-competitive work we would like of him, but he clearly will not be in a position to play for at least eight weeks, so we have placed him on the long-term injury list."

The move means Trengove can't make his debut until at least round four which paves the way for one of five Power rookies – Wade Thompson, Danny Meyer, Daniel Stewart, Matthew Martin or Jesse Laurie – to earn selection early in the season.

Trengove's unavailability is a further blow to his fledgling career which has already seen him disciplined by the club for an off-field indiscretion while back in Victoria during the Christmas break.

Trengove was fined $2500 by the club for the alcohol-fuelled incident which saw damage caused to the rear windscreen of a car.