Boxer Otto Wallin spent 12 rounds in the squared circle with Tyson Fury ... and given that experience, the Swedish boxer believes Francis Ngannou has virtually no chance of beating the Gypsy King!
TMZ Sports talked to 32-year-old Wallin after the Fury vs. Ngannou bout was announced on Tuesday ... where we got Otto's thoughts on the matchup.
"Tyson is the best heavyweight fighter in the world in boxing. Ngannou might be the best at MMA at heavyweight. So this fight is gonna be at boxing so you obviously gotta favor Fury a lot.