Perryman suffered a punctured lung in an act of bravery in the Giants' big opening round win over Essendon last Sunday.

"It was a really courageous by Harry in terms of his attack on the ball and then to stay on for a couple of minutes afterwards to contest the ball with a pneumothorax, which is a punctured lung," Giants general manager of football Wayne Campbell told the club's website.

"Our doctors did a really good job at half time, they could see he couldn't breathe, called the medics and took him to hospital.

"He's up and about and at the club today but will certainly miss this week and subsequent weeks.There'll be some further checks done in the next couple of days and couple of weeks to see how long he is.

"He hasn't broken a rib which I think is interesting or unique in this circumstance. They tend to be punctured by the broken rib but Harry doesn't have that so we don't have to wait for that to heal, it will just be the lung."

Perryman collided with Essendon's Patrick Ambrose late in the second quarter as both players attacked the loose ball.

Perryman played out the quarter before reporting difficulties breathing at half-time.

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