Brett Ratten has declared Max King has the ability to turn a game on its head like few others after the 21-year-old exploded for a second straight week to lead the Saints to a comeback victory.

After his rapid-fire three-goal burst in the win over Fremantle last week, King sprung to life in the final term, booting four goals and hauling in six marks to complete the 58-point turnaround.

"Some of the elite players or the very good players of the competition have the ability to change games, whether it's only two possessions, three possessions or 10 and Max is one of those players who can do that," Ratten said.

"He's still growing but he's pretty exciting when he launches at the ball. The great thing was he kicked a few big goals to give us a little bit of breathing space.

"Some of his attributes, to be 204cm and run around and launch at the footy and do what he does, it's pretty special, but he's still got a lot of growth."

Ratten said it was "good to trial" all of Paddy Ryder, Jack Hayes and Rowan Marshall in the same team, but stopped short on saying he'd repeat the tall line-up.

Jack Higgins was substituted out with concussion after a first-quarter tackle from Hugo Ralphsmith.

But Ratten didn't think there was any additional concerns over Higgins, who had two rounds of brain surgery in 2019, beyond standard concussion protocols.

Ratten also confirmed Jack Billings had a "setback" with his hamstring injury and would miss another 2-3 weeks.