Transgender MMA Fighter Should Be Banned from Sport ... Says Next Opponent

Transgender MMA fighter (and former man) Fallon Fox has NO PLACE in women's mixed martial arts ... so grouses her next opponent ... but the challenger is still confident she'll kick Fallon's ass.

Allanna "Hands of Stones" Jones -- who's scheduled to fight Fox next month in Florida -- tells TMZ, "It doesn't matter what he [Fox] had changed ... he was still born and developed a man."

Jones believes Fox's participation in the sport will distract from the accomplishments of "real" female fighters, saying, "[WMMA] is just making a name for itself and this will have a negative impact on it.”

Worth noting ... Fox is a postoperative transsexual who has undergone hormone therapy and has been living as a woman for years. Any advantage she might have over other female fighters is debatable.

But despite claims it's not a fair fight, Jones is still convinced she'll wipe the floor with Fox -- telling us, "I am not scared to fight him because I know I can win."

Guess we'll see about that.