PERTH, AUSTRALIA - APRIL 9: Aaron Sandilands of the Dockers contests a boundary throw in against Nic Naitanui of the Eagles during the 2016 AFL Round 03 match between the West Coast Eagles and the Fremantle Dockers at Domain Stadium, Perth on April 9, 2016. (Photo by Daniel Carson/AFL Media/Getty Images)

Fremantle’s season is on the verge of disarray just three rounds into 2016.

After going down to the Eagles by 33 points on Saturday night, the Dockers are now sitting 0-3 and now look to have lost ruckman Aaron Sandilands for an extended period of time.

Sandilands suffered a collapsed lung after copping to a knee in the rib cage from Nic Naitanui in a marking contest.

The Dockers are unsure exactly how long Sandilands will miss, with the severity of the puncture not yet determined, but he could miss as long as six weeks.

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Coach Ross Lyon also confirmed that captain David Mundy, who was a late withdrawal, will miss “a few week” with a calf strain.