Hawthorn has been dealt another major blow in the lead up to their clash with ladder leaders Port Adelaide.ย 

Jaeger O'Meara, who had 27 disposals in Sunday's 32 point defeat to West Coast, will head under the knife to have surgery after breaking his hand in the same game.ย 

He will miss this week's clash with Port andbe re-evaluated after having surgery.

"Unfortunately Jaeger's fractured his hand in the game in the first quarter," Hawks physical performance nanager Luke Boyd told the club website.

"It was a pretty gallant effort from him to get through the game. He's going to have surgery this week which'll obviously rule him out (for this week's game).

"We'll reassess next week and see whether he's available to play."

It comes as after it was confirmed star defender James Sicily ruptured his ACL against the Eagles, sidelining him for the next 12 months.