Port's Ryder cleared of serious AFL injury

Port Adelaide ruckman Paddy Ryder has been cleared of serious injury but will miss the AFL club's next game because of a hip ailment.

Port had feared the All Australian ruck could miss a month but scans revealed only a strain to a hip flexor muscle.

Ryder will miss Sunday's fixture against Greater Western Sydney but Port hope he will be available the following week.

Ryder's teammate Robbie Gray remains in doubt to face the Giants at Adelaide Oval after being knocked out in last Sunday's loss to Fremantle.

Gray must pass concussion protocol testing later in the week to front against GWS.

But his teammate Todd Marshall is unlikely to be available for selection after hurting an ankle in state league ranks last weekend.

The 19-year-old was stretchered from the field after being injured while playing for the Port Magpies but scans showed no major structural damage.