Port Adelaide is set to be without key defender Trent McKenzie for its anticipated Saturday afternoon clash against Collingwood at the MCG after the 30-year-old suffered a sprained ankle during the Power's season opener.

McKenzie sustained the sprain during the first term of his side's runaway 54-point win over the Lions last Saturday but was able to play out the game before a packed Adelaide Oval crowd.

Reports out of Alberton on Tuesday stated the former Sun had received imaging on the joint within the last 24 hours and will be assessed further during the week.

Port Adelaide's medical team is yet to provide a timeline for the stopper's return.

In happier news, Ken Hinkley's charges could well see a dual boost for their Magpies matchup, with the club claiming both Travis Boak and Jeremy Finlayson have entered contention for  selection after each missing Port's Round 1 win.

Having spent last Saturday on the sidelines nursing a rib fracture, Boak has been listed as a "hopeful" selection for Round 2.

Finlayson found form in playing at SANFL level last weekend, using Port Adelaide's practice match as an opportunity to build confidence as he completes his rehabilitation block after going under the knife to repair an injured syndesmosis injury.

Port and the Pies will do battle at the MCG during the near-traditional Saturday afternoon timeslot of 1:45 pm (AEDT), with both sides currently holding territory in the top eight following resounding first-up wins.