GIANTS coach Leon Cameron has confirmed that co-captain Phil Davis will miss the GIANTS’ trip to Hobart to take on North Melbourne, after the defender was ruled out with concussion.

It means Cameron and the GIANTS will need to make two changes to their side that played last week, with Matt de Boer already ruled out with a hamstring injury. 

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Davis, who was concussed in the third quarter of last Saturday’s loss to West Coast, will be replaced by fellow defender Tim Mohr, who will play for the first time since the GIANTS’ round 10 win over the Eagles in Perth last year. 

He's feeling better, but it was a really big hit as everyone would have seen," Cameron said.

"He had some headaches on Sunday and Monday, (and they were) minor yesterday.   

"But with the concussion protocol, obviously if you get to Wednesday and you still have some symptoms that rules you out.  

"It's disappointing we're not going to have him this weekend."  

Speaking to the media on Wednesday at the WestConnex Centre, Cameron said that a review was underway following a spate of injuries over the past 12 months. 

While the club constantly reviews its programs, GIANTS Academy director John Quinn has been brought in to cast fresh eyes over the program. 

"He's a really good person who has worked in high performance (departments) all his life," Cameron said.    

"We've engaged John to put a fresh set of eyes over our program to look at why we're sustaining some of these injuries.     

"John might be able to pick out some things that we might be doing rightly or wrongly, and I think that's the sign of a footy club that is open to checking out spots that we might not be covering off on.     

"Even though a lot of our injuries can be put down to bad luck, there's always something you can improve in your program."