Penrith Panthers can confirm captain Peter Wallace's 2015 season is over after the playmaker suffered an ACL tear in his right knee during Sunday's loss to Canberra Raiders.
Wallace will consult with a specialist on Tuesday before undergoing surgery in the near future.
Joining him on the sideline is Panthers centre Dean Whare, who suffered a broken thumb against the Raiders.
Whare will have surgery later this week and will be out of action for four to six weeks.