ADELAIDE midfielder Richard Douglas will miss up to six weeks after suffering a strain to his plantar fascia against Port Adelaide on Sunday.

The Crows star had a scan on his foot after the club's round five loss to the Western Bulldogs – in which he managed just 17 possessions.

He was again down on his usual output against the Power, collecting 16 disposals after averaging 26 possessions across the first three games.

Doc Larkins' injury update: round five

Scans confirmed Douglas has strained his plantar fascia, a thick connective tissue that supports the arch of the foot.

Head of football David Noble said Douglas could be sidelined for some time.

"It looks like he's got a strain to his plantar fascia, which is a ligament on the bottom of his foot," Noble said.



"Unfortunately that looks like it could be a 4-6 week injury."

Noble said Rory Sloane (corked calf) and Ricky Henderson (chest knock) would be tested during the week.

Veteran utility James Podsiadly will miss another two weeks with a fractured back, while Brad Crouch could return within a month.