AFL greats Tim Watson and Garry Lyon both believe Collingwood defender Brayden Maynard should have been awarded a free kick for a block in the dying seconds of Saturday's Grand Final for a block by Willie Rioli.

Rioli prevented Maynard from getting to the contest as Eagle Dom Sheed backed in to take an uncontested mark in the forward pocket, before kicking the match winning goal with little time remaining.

Speaking on SEN, both Watson and Lyon said it was the wrong decision.

"It is umpired differently in a big game,” Watson said.

"I think they swallowed their whistles in the last quarter. They decided this game won’t be decided by our decision making.

"In any other game, that is a free kick."

Co-host Garry Lyon agreed, saying the umpiring was different compared to regular games but said it was a free.

"It’s 100 percent a free kick but if you want to raise other incidents where West Coast didn’t get a free kick or Collingwood got a lucky one I’m happy for you to do that, but on this particular incident, that’s a free kick," he said.

"I loved the way the game was umpired.

"The game started and as a commentator, you go, that’s a free kick, and before the whistle is blown you look down the ground to see if anybody is free.

"This happened to Scott Pendlebury in the first four seconds, I looked down the ground, and then thought, oh he didn’t pay it.

"Then something else happened in the next 20 seconds for West Coast and the whistle hadn’t gone.

"I thought if that’s the way it was going to be, that’s great, you are going to have your head ripped from your shoulders to get a free kick."