Fury and Joshua look set for a monumental clash this year to decide who is the true king of the heavyweight division.
Fury currently holds the WBC belt after dominating previous champion Deontay Wilder in February 2020.
Joshua is the WBA, IBF and WBO champion. He won back his titles in December 2019 after suffering a shock defeat to Andy Ruiz Jr.
Speaking ahead of the huge British clash, Wallin told Sky Sports: "I think AJ versus Fury is the fight to be made. I want to see it and the world wants to see it.
"They are the two best heavyweights in the world right now and we need that fight.
"I've been watching AJ's fight with [Dominic] Breazeale lately and AJ has got a great style and he's got all the tools to beat Fury but I'm not sure how much AJ trusts himself.
"I think Fury has a strong mind and good confidence and sometimes that's more important than anything. That's why I believe Fury would win."
Wallin fought the 'Gypsy King' in September 2019, taking him the distance in a surprisingly close bout.
Fury managed to win via unanimous decision despite suffering a nasty cut to his right eye.
Speaking about a potential rematch, Wallin said: "My dream is to fight and win the world title. Right now, I just have to keep fighting and improving so when I get the shot I'll be ready to grab it with both hands.
"The Tyson Fury rematch is not my top priority but I truly hope I get another shot at him. I just have to keep fighting and winning and show that I'm worthy of a rematch and when the time comes I'm ready to go in and beat him."
Wallin faces Breazeale on February 20 in Connecticut, USA.