Jeremy Howe (left) has been ruled out for another week. Credit:AAP

Collingwood will be without high flying defender Jeremy Howe for a third consecutive game as he battles to overcome a persistent and serious corked thigh.

The Magpies were hopeful the injury would settle for the vital clash against Port Adelaide at the MCG on Saturday but Fairfax Media understands the 28-year-old will need further treatment as Collingwood attempts to fast track his recovery.

Collingwood football manager Geoff Walsh confirmed that Howe needed a medical procedure to drain the corkie after it lingered for longer than expected.

"The medicos tell us there will be a good result coming from that," Walsh said.