Hayes was one of the best stories of the Saints' surprise early season charge but the 26-year-old suffered an ACL tear in the round six win against GWS, ruling him out for the remainder of the 2022 season.

Coach Brett Ratten was quick to reassure the forward he would remain at St Kilda after joining the club via the Pre-Season Supplemental Selection Period in March.

On Thursday, the Saints confirmed Hayes' future was secure until at least the end of 2024 by signing a new two-year contract.

"Jack impressed us from the moment he walked in the door," Saints list manager James Gallagher said.

"His competitiveness, determination on-field, gratitude and general commitment to make the most of this opportunity has been outstanding.

"What we've seen from him so far in the AFL, is exactly what we've observed for the past couple of years from him at SANFL level.

"Jack's already attacking his rehabilitation with the high level of professionalism we've become accustomed to from him, and we look forward to seeing him back up and running in the not-too-distant future."

Australian Associated Press