Luckless Fremantle midfielder Anthony Morabito has suffered another injury setback after he tore his left hamstring at training on Monday.
The Dockers website said Morabito had scans on Tuesday which confirmed the injury which is likely to see him in the club's rehab group for the next six weeks.
The 24-year-old rookie will undertake a rehabilitation program after which club medical staff will determine his availability to return to full training.
Morabito's latest setback is a huge blow to the midfielder's hopes of making a remarkable comeback to AFL ranks - a return which was looking likely after he impressed in match simulation at pre-season training earlier in the year.
The injury-ravaged Docker did not play a game last year at any level due to ongoing knee trouble and was given leave by the club to travel overseas.
He has played only three AFL games - all in 2014 - since suffering the first of three anterior cruciate ligament injuries after being a Rising Star nomination in 2010.
But since having been rookie-listed at the end of 2015 he had caught the eye training with Fremantle's defenders over the summer before Monday's unfortunate turn.