AGGRESSIVE Port Adelaide defender Tom Jonas won't be changing the way he plays despite being suspended for last year's elimination final.

Jonas was handed a two-game ban for rough contact on Western Bulldogs midfielder Luke Dahlhaus in round 22.

That forced him to miss the extra-time loss to the Eagles in the first week of the finals.

"My value on the team is playing on the edge and bringing that aggression," Jonas said.

"I'm probably not as talented as some and I need to do that to perform at a high level, so I've got to do that."

Jonas was also suspended for six weeks for striking West Coast's Andrew Gaff in 2016.

Jonas is in the Power's leadership group, finished third in their best and fairest and was named in the 40-man All Australian squad last year.

He said he had been working on ways to more effectively stop smaller players without crossing the line.

"I've probably worked a little bit with Bass (defensive coach Nathan Bassett) around the technique side of defending a little bit, more so from last year's incident than the year before, just around being able to stop my opponent without the risk of slipping high," Jonas said.

"Internally, we felt it wasn't as much an aggression thing, as much a technique thing, so I've been trying to do that.

"I test myself by playing on smaller blokes out on the field rather than just the bigger blokes and put myself in difficult situations.

"It's one of those actions you do a lot of times in game and during a season, so hopefully I have no misdemeanors this year and get through unscathed."

Jonas expects the Power to take a strong 26-player squad to Perth for their opening JLT Community Series game against the Eagles on Sunday.

The JLT Series has been reduced from three games to two this year to allow for the inaugural AFLX tournaments that were held last weekend.

"I think two is the right number because you can always play an internal (trial) if you need," Jonas said.

"Three just becomes a little burdensome on some of the boys.

"Not everyone is coming in at 100 per cent and to play three games can be a bit drawn out.

"I think two is a nice amount of competitive fixtures, and if you need a top-up, you can do some extra internal work."