Former WBC heavyweight champion Deontay Wilder is backing his former foe, Tyson Fury, to defeat Oleksandr Usyk in a potential undisputed showdown.

Wilder has been out of the ring since last October, when he suffered an eleventh-round knockout loss in his trilogy fight with Fury, who retained the WBC world title.

He is scheduled to finally return next month in a high-stakes fight with Robert Helenius, which takes place on October 15 at Barclays Center in Brooklyn, New York. The bout will headline a Fox Sports Pay-Per-View card.

After Helenius, Wilder wants to target the biggest names at the weight - including Usyk, Joshua and others.

"I'll fight them all. We'll see, the future is bright. The king is back. Ain't no excitement going through unless I'm here. We've tried to prove that many times, and we have. That's why I'm back by popular demand," Wilder said to ES News.

Last Saturday night in Saudi Arabia, Usyk retained the WBO, IBF, IBO, WBA world titles with a twelve round decision in his rematch with Anthony Joshua.

The attention has now turned to a fight between Usyk and Fury - with a December date being kicked around for Saudi Arabia.

Wilder believes Fury will simply be too big in that matchup.

“I think Fury will be too big for him. He just uses his size all the time, no matter what, and a lot of other things. I think Usyk’s too small, that’s my opinion. I think Usyk has a stamina problem as well. You saw with Joshua, if Joshua had enough stamina it’d probably be a different result," Wilder said.