Hawthorn will be without Karl Amon and Jack Scrimshaw as they enter concussion protocols ahead of the club's Centenary Match against Richmond on Sunday afternoon. 

Both players suffered head knocks in the Hawks' 50-point win over West Coast at Marvel Stadium in Round 7 and have now been sidelined. 

Elsewhere, Mitch Lewis and Will Day are progressing well in their recoveries, according to High Performance Manager Peter Burge. 

Karl Amon - concussion - TBC 

"Karl's good. He came in today and he's feeling better. He's started some exercise on the bike. He just had an incident late in the third quarter, he came off the bench and just made it known that he wasn't quite right from a knock. The doc assessed him, he was withdrawn from the game and is now in concussion protocols."

Jack Scrimshaw - concussion - TBC 

"Jack's similar (to Karl), he's on the exercise bike and like Karl, they both have to go through a minimum of 12-day concussion protocol, as set out by the AFL. The slight difference with Jack is that he had a concussion six weeks ago as well against Essendon, so his situation is a little different and there's more to consider compared to Karl. At this stage, they're both going through the same process and same protocols and the doc will work through them individually over the next week. We'll be able to update further next week with what that's looking like for both players and their potential availability." 

Watch the Round 8 inury update below. 

Hawthorn AFL Injury List - Round 8