Geelong youngster Brandan Parfitt will miss up to 8-10 weeks after suffering a hamstring strain in the Cats' loss to Collingwood on Sunday afternoon.

Early in the fourth quarter, Parfitt was chasing down a ball on the wing before grabbing at his hamstring, before being helped from the field by the Geelong trainers.

AFL reporter Peter Ryan tweeted the severity of Parfitt's injury, with the 19-year-old now set to miss at least two months of football.

Parfitt has averaged 14.7 disposals and 3.3 tackles a game from his six appearances this season.

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