Kalyn Ponga's tackle on Victor Radley in Sunday's NRL grand final could affect his availability for the World Cup opener.
The Newcastle star was placed on report for a high tackle, and a post-match review could result in a fine and/or suspension.
The tournament starts October 15, with selections yet to be confirmed.
Former Warrior and Sport Nation host Blake Ayshford also praised Naufahu Whyte's grand-final performance.
Ayshford said he would regret Ponga missing a major match-up: "So for me, I'd hate to see him ruled out because that's going to be one of the biggest clashes in the world cup or the biggest clash."
He described Australia-New Zealand as a preview of the likely final.
Ayshford rated Ponga among rugby league's best players over the previous month and a half, despite Nathan Cleary winning the season's Dally M award.