HAMISH Hartlett is nursing a tight hamstring and trained lightly on Monday morning but will be back to full fitness "in no time", according to Port Adelaide teammate Tom Jonas.

The 24-year-old Power star pulled up sore from training nearly two weeks ago and his workload was cut.

He barely worked out of a jog on Monday and rested his sore left hamstring while kicking.

Hamstring and shoulder injuries held Hartlett to just 46 games in his first four years at Alberton, but he's played 44 in the past two seasons.

"He (Hartlett) obviously had a slight setback but he's no dramas - he's out there doing some running," Jonas said.

"The physios will probably be reasonably cautious with him, given he's had a little bit of hamstring trouble [in the past], but he'll be back in no time." 

Jackson Trengove hasn't yet returned to running, with his arm still in a sling after shoulder surgery.

The defender is tipped to make a late play to line up in round one, but won't feature in the NAB Challenge, with the Power’s first pre-season game coming against West Coast on March 8.

Trengove's absence will place greater importance on Jonas' role in Port's backline.

Tom Clurey will likely receive an opportunity to show his improvement after debuting last year, while Cam O'Shea and Paul Stewart will also hope to impress.

All are capable of playing against taller or smaller opponents and Jonas said the versatility was key to Port's success on game day.

"Having blokes who can go up to the wing and wingers that come back to half-back make it tough for opposition teams to know what we're going to do," he said.

"It's also good for us should someone go down or someone's getting tagged…that flexibility's really important."

After finishing 10^th in Port's best and fairest count last year, Jonas said he had been trying to hone his skills and his offensive output over the summer.

Like his teammates, he's used the pain of last year's preliminary final loss to Hawthorn as motivation this pre-season, although he said he still hadn't watched the whole game.

In particular, Jonas said he hadn't re-examined the controversial holding-the-ball decision against him, when he was penalised on Port's half-forward line with under a minute remaining.

"I actually haven't watched that decision. When you bow out and get so close you just want to get away from the game for a while," he said.