With the departure of Kurt Tippett, Walker looked poised to become Adelaide's dominant forward, until a serious knee injury (ACL Rupture) suffered in Adelaide's Round 6 loss to ruled him out for the rest of the season.
With the departure of Kurt Tippett, Walker looked poised to become Adelaide's dominant forward but he struggled. He badly hyperextended his right knee suffered an ACL injury in Adelaide's Round 6 loss to ruled him out for the rest of the season.