The AFL is set to survey fans to determine whether a 30-second shot clock should be displayed on the scoreboard going forward.

Mason Wood iced the clock in the final seconds of Sunday night’s match, after being alerted by the Roos’ runner to the limited time remaining.

The youngster even drew praise from Saints’ coach Alan Richardson for his “great composure”, but the rule has now come under scrutiny.

"I like seeing it (the shot clock) at the stadium but I didn't like the way that it played out, so we will have a look at a few things," AFL Football Operations Manager Mark Evans said.

Evans said it was feasible the countdown display could be removed, but admitted it would make the job harder for umpires to monitor the time a player took to take their kick.

"It can [be changed this year] because it really is just something that goes on to the scoreboard. It's not a rule. A player can take 29 to 30 seconds anyway, regardless of whether the shot clock is there," he added.

Speaking after the game, Wood said he'd have no hesitation in running down the clock again.

"I'm just playing within the rules and until they (the AFL) change the rules, players will keep doing it," Wood told AFL.com.au.

"The runner came out and told me there was only 20 seconds left in the match, so no matter how hard the Saints fans booed I was never going to let the footy go."

Meanwhile, Evans said the free kick paid to Todd Goldstein the dying stages was justified – with the North ruckman’s ability to get to the drop of the ball impeded by St Kilda's Tom Hickey.

"It is one of those free kicks that is there and is technically there. If it wasn't paid, I'm not sure we would die in a ditch over it, but the free kick was there," Evans said.