Naismith, a Gunnedah export, has not played a senior game since the Swans' loss to Geelong in a 2017 semi-final, having ruptured his right anterior cruciate ligament at training last March.

The injury update on the ruckman comes as it was announced Naismith and fellow Swan Darcy Cameron will be in Tamworth for the Sydney Swans Community Camp next week. 

The Swans will run sessions for players of all ages and skill levels on Tuesday at Tamworth No. 1 Oval.

Meanwhile, Longmire told radio station SEN that Naismith, 26, had made good progress since undergoing another operation on his knee in December.

"He's going OK, he's running. He's not training yet, so he won't be available for the start of the season," Longmire said.

"He had the knee reconstruction last year and he had a minor cleanout just before Christmas and so that's helped him get through so far.

"We're not pushing him along too hard. He's a significant player for us in the ruck and missed all of last year, so we hope to get him back within that first four to six weeks."

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At No. 1 Oval on Tuesday, things will kick off with the youngsters taking to the field for an Auskick session at 4pm.

After that, the Tamworth Roosters will then mix it with the AFL stars at 5pm.

The 5pm training run will also double as a free come-and-try session. Boys and girls aged 12-17 are invited to attend the session.

To close things out, the Tamworth Swans and the Tamworth Kangaroos - both men's and women's players - will put their rivalry aside for a session at 6pm.