Promising Fremantle midfielder Stefan Giro has injured his right knee in the opening term of Peel Thunder’s WAFL practice match against Subiaco at Rushton Park.

Giro had had a handful of touches early and had won a high-contact free kick before he had to be assisted from the ground.

Club medicos worked on the knee near the dugout and had ice on the joint before quarter time.

Giro took no further part in the game.

The injury to the teenager, and an elbow injury sustained by Brady Grey in the final quarter, were the only downsides in a game which highlighted that both teams are likely to be near the top end of the WAFL ladder this year.

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Grey returned to the field to indicate his injury wasn’t serious.

Giro was Fremantle’s second selection at last year’s Rookie Draft.