Port Adelaide captain Dom Cassisi could miss Saturday night's AFL match against Melbourne to be at the birth of his child.

Cassisi did not depart Adelaide on Thursday with his Port Adelaide teammates as they flew to Darwin to prepare for the match.

Cassisi's wife was due to give birth on Wednesday.

The Power skipper planned to fly to Darwin on Saturday and then return to Adelaide immediately after the clash with the Demons, Power coach Matthew Primus said.

"His wife is due to give birth pretty soon so he's just trying to minimise the time he's away from home," Primus said on Thursday.

"Not ideal, but Dom's preparation is pretty good."

Spearhead Jay Schulz also did not leave with his teammates on Thursday but will attend a family funeral in Adelaide on Friday before flying to Darwin the next day.

Primus said Port had added Steven Salopek and Daniel Motlop to their travelling party to cover for any player losses.

Young defender Jackson Trengove has been cleared to play after suffering a burst blood vessel in his right wrist during Port's loss to St Kilda last Sunday.

"His arm is no worries, it has come up fine," Primus said.

"He will definitely play, he might have a little bit of strapping but it's mainly just bruising."

Veteran Chad Cornes keeps his spot in the side after returning last week from an extended absence.

Cornes appears certain to quit the Power at season's end and has been a rumoured target of new entity Greater Western Sydney.

"It's not my decision to make if Chad wants to play on with GWS or whatever it's going to be," Primus said.

"We will continue our discussions with Chad as the year draws to an end.

"There is going to be speculation about and we will keep the conversation open with Chad ... I suppose it depends on how many games (the) teams want to get out of those kind of players.

"We know what Chad has achieved in his career and the experiences he's had, so a youngerclub like that might see that is something valuable for them to have."

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