Collingwood defender Brayden Maynard believes he would have had a chance to spoil Dom Sheed's mark in the 2018 Grand Final, if he was not "blocked" by Willie Rioli.

In the buildup to Sheed's matchwinning goal in the dying stages of the game, Maynard was unable to make the contest because of an infringement from Rioli.

"I still feel I would have been a good chance to spoil the mark had it not been for the block from Willie Rioli," Maynard told the Herald Sun. 

"You can see in the footage I was quite angry at the umpire for not calling it.

"On the replay, I saw he put his whistle to his mouth to blow it, but then he doesn’t."

Despite the constant reminders of what could have been, Maynard says he has moved of from the incident.

"I’ve moved on, although I still see 2018 as one of the craziest years of my life.

"It was a sad day but one I’ll never forget as it was the first grand final I’ve played in, which I’m grateful for.

"Hopefully we’ll be back there before long."

The 23-year-old could very well have been an Adelaide player had his dad played four more SANFL games by the end of 1990.

The AFL required 200 game SANFL players by the end of 1990 to be eligible for the Crows father-son rule as Adelaide came into the AFL in 1991.

Had he been eligible, Maynard would have "loved to have gone to the Crows" to stay close to family.