Deontay Wilder says he's done talking with Anthony Joshua's camp about a possible superfight down the road ... telling TMZ Sports Joshua's a LIAR who doesn't actually want to fight!!
Wilder and Joshua are the two biggest names in boxing right now ... and both Joshua and his promoter, Eddie Hearn, have told us recently a superfight between the two WILL happen.
But, now Wilder is throwing the brakes on all that talk ... telling us Joshua really DOESN'T want to make the fight work.