LUCKLESS Docker Anthony Morabito has suffered another injury setback, tearing his left hamstring at training on Monday.

The 24-year-old will be in the rehab group for the next six weeks before the club decides on the next course of action.

Before this setback, Morabito had made a remarkable return to full fitness and had hardly missed a session with the main group during the pre-season.

He had been training with the defenders during the pre-season with the aim of playing as a mid-sized running defender capable of playing on both talls and smalls.

Teammate Michael Walters backed Morabito to rebound quickly from his latest injury.

"It's disappointing but he's pretty resilient," Walters said.

"He's been through a lot throughout in his AFL career and this is just another thing for him to get over. I'm pretty sure he can get over it.

"He'll be doing everything he can to make sure his hammy is fine and I'm sure he'll be back pretty soon."

He was the feel-good story of the 2014 season when he made an extraordinary comeback to AFL football after missing three seasons due to three knee reconstructions.

He played three AFL games that year but has not played a single match at any level since, after suffering severe bone bruising and ongoing soreness in his left knee.

Morabito was given time away from the club last year and travelled overseas to give his knee a rest. The club elected to delist him with a guarantee to redraft him as a rookie.