Heavyweight boxing champ Deontay Wilder is sick and tired of Tyson Fury -- telling TMZ Sports the guy needs to stop running his mouth and FIGHT HIM already!
Fury has been trashing Wilder all over the media -- even threatening to sexually assault Deontay ... it's pretty insane stuff.
Wilder says Fury "crossed a line" -- and now he needs to be dealt with ... IF he beats Wladimir Klitschko next month.
BTW, Wilder is all set to appear on the "TMZ Sports" TV show on FS1 Wednesday night -- you're not gonna wanna miss it!!!
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