Tyson Fury returned to the ring after his short retirement in a joke of an event which was headlined by his third bout against Derek Chisora.
'Del Boy' has already endured a lot of punishment in his long career and he took a lot of unnecessary damage as he was outclassed by Fury over ten rounds.
'The Gypsy King' faced off with Usyk and Joyce post-fight in a scene that resembled something you would see in WWE.
It is expected that he will fight two-weight world champion Usyk in the first quarter of 2023 in Saudi Arabia.
Wallin previously cut Fury and caused him all sorts of issues before losing via a points decision.
He thinks Usyk is capable of "pulling off" a major win over Fury.
"It'll be very difficult, of course. Usyk is smaller," Wallin told IFL TV.
"At the same time, when you look at it, he's not that small. I've also been saying that Usyk is probably going to be too small for Fury. What is he, 6'3″, 6'2″, or something?
"When he was in the ring there [with Fury last Saturday night], I didn't think that he was that small, but we'll see. They said he was going to be too small for [Anthony] Joshua also, but he wasn't.
"Fury is always going to be the favourite for me, but you can never rule it out. He [Usyk] might pull it off.
"He's a smart fighter and has been in boxing for a long time. He has a lot of experience. It'll be very interesting. I want to see the fight, of course."
Wallin later suggested that Uysk and Joyce are both capable of giving Fury a difficult night.
"Fury is a really smart fighter. He's going to try and outbox both guys, and maybe try and push them back also," Wallin added.
"If he can make Joyce go back, that would be so much easier for him, but Joyce is a really tough guy. He throws a lot of punches and would probably stay on Fury. It's hard to pick one.
"I think that both guys can give him problems, even though I think Fury would be the favourite in both fights. I think both guys can give him problems in different ways."