Young Melbourne forward Jacob van Rooyen will also sweat on how match review officer Michael Christian assesses his high swinging arm on Collingwood tall Dan McStay, and whether that rules him out of a sudden-death semi-final.
Brayshaw will miss Melbourne's semi-final against either Carlton or Sydney under AFL concussion protocols after he was flattened by Maynard less than 10 minutes into Thursday night's 9.6 (60) to 7.11 (53) loss at the MCG.
Maynard jumped towards Brayshaw, attempting to smother his kick inside 50, and turned and collected the midfielder high with his shoulder, knocking him out cold.
Brayshaw required lengthy attention on the field before leaving the field on a stretcher and in a neck brace.
The on-field umpire could be heard on the broadcast saying Maynard was reported for the high contact.
"I don't want to say too much, but it's a footy act," Maynard told the Seven Network.
"I came forward, I jumped to smother the ball and yeah, unfortunately I just got him on the way down.
"So I don't know. We'll have to wait and see what happens."
Melbourne coach Simon Goodwin certainly wasn't doing Maynard any favours.
Brayshaw, 27, cannot play again for at least another 12 days, while he has a lengthy concussion history and wears headgear.
"I guess that'll be sorted out during the week, but we've got a pretty shattered player (Brayshaw) in there," Goodwin said.
"Look, you can only go by the facts: he jumped off the ground and knocked a guy out.
"So I guess time will tell."
Beyond the concussion, Goodwin said Brayshaw only had a "shiner".
Melbourne teammates Alex Neal-Bullen and Christian Petracca failed to weigh in on the incident except to say they were "devastated" for Brayshaw.
"I was right there, and it was pretty upsetting to see him on the ground like that," Petracca told KISS 101.1.
"Anyone, even a Collingwood player, you don't want to play this game to see anyone getting concussed."
Collingwood coach Craig McRae queried whether there was malice to Maynard's action.
"I've caught it on a phone. One view of it, one angle, it looks like he's in the air," he said.
"The act itself, it didn't look like it had much malice but I'll leave it up to others to decide if that's worthy of a suspension or not. I don't know."
Van Rooyen collected McStay on the jaw with his arm after the Magpie dropped a mark in the first quarter and the ball spilled between them.
Goodwin said: "I haven't really seen too much of it but I'm pretty sure McStay stayed on the ground."
The Magpie went off the ground for a concussion assessment but returned and played out the game.
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